ML22158A277

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INLRPT-22-67296 ECAR-5644 Rev. 2_Part2
ML22158A277
Person / Time
Site: 07109330
Issue date: 04/12/2021
From:
Idaho National Lab, US Dept of Energy (DOE)
To:
Storage and Transportation Licensing Branch
P SAVEROT NMSS/DFM/FFLB 3014157505
Shared Package
ML22158A270 List:
References
Download: ML22158A277 (61)
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TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B129 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.3 Lid plastic equivalent strain after the second impact for the CD4 test.

The lid plastic equivalent strains are shown for information.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B130 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.3 Enclosure plastic equivalent strain after the second impact for the CD4 test.

The enclosure plastic equivalent strains are shown for information.

B-4.4 Results for the CD5 Test The drop scenario considered in this section is a 4-foot drop [CN1-1 in the ATR FFSC SAR (2017)]

sequentially followed by a 30-foot drop [CD5-1 in the ATR FFSC SAR (2017)} and then sequentially followed by a 40-inch vertical drop with the lid impacting a puncture bar [CP1-1 in the ATR FFSC SAR (2017)]. The main body, Section 2.0, Table 2 provides the fuel element weight and stated purpose of the CD5 test. The fuel element weight is 44 lbf. The stated purpose of the model run is to demonstrate retention of the closure. The FEA model results for the CD5 test model are shown below in Figures B-4.4-1 to B-4.4-13. The material properties are defined in Table B-2.1-2 for the FFSC body, Table B-2.1-3 for the FFSC lid, Table B-2.1-6 for the enclosure, and Table B-2.1-9 for the fuel element.

Initial runs of this scenario showed some stability problems that started near the start of the third step. It was determined that there was difficultly for Abaqus (2021) reestablishing contact with the fuel plates and badly damaged end box (caused by the second impact). This region is impacted again in the third impact so its contact could not just be removed. Instead, two impacts are included in the second step so that the contact definition can be continuously used. However, this makes it so that the second and third impact surfaces must be defined for contact in the second step. This does not cause an issue for the third impact

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B131 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements surface but the second impact surface is in the way for the third impact so it must be moved. Consequently, the boundary condition for the second impact surface is defined as fixed until rebound from the second step begins. Once the FFSC is no longer in contact with the second impact surface, the second impact surface is accelerated away to prevent further interaction.

To simplify when contact occurs on the third impact, the lid handle is not considered for contact. Instead, the center top surface of the lid is used for contact calculation. To ensure that premature interaction doesnt occur, the gap before impact occurs is set to 0.5 inches instead of 0.25 inches. This is because the pin associated with the tamper indicating device protrudes beyond the lid surface.

Total energy External work Kinetic energy Artificial strain energy Plastic strain energy Recoverable strain energy Frictional energy Damage dissipation energy Figure B-4.4 CD5 test energy curves.

Figure B-4.4-1 shows the energy curves for the CD5 test. As is apparent by the kinetic energy, the first impact occurs near a run time of 0.02 seconds, the second impact occurs near a run time of 0.04 seconds, and the third impact occurs near a run time of 0.07 seconds. These curves exhibit a stable and acceptable shape.

This FEA model is run with a step having one impact followed by a step having two impacts. As evidence that all three impacts occurred with reasonable initial conditions, Figure B-4.4-2 shows the loaded FFSC velocities for each step and Figures B-4.4-3 to B-4.4-5 show the loaded FFSC orientation near the point of impact.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B132 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements 100 First Impact Velocity [in/sec]

0

- x-direction 100

- y-direction 200 0 0.01 0.02 200 Second Impact 0

Velocity [in/sec]

200 400 600 0 0.01 0.02 0.03 50 Third Impact 0

Velocity [in/sec]

50 100 150 200 0.04 0.06 0.08 Time [sec]

Figure B-4.4 Loaded FFSC center-or-gravity velocities for the CD5 test.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B133 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.4-2 shows the loaded FFSC center-or-gravity velocities for the first, second, and third impacts.

For the first impact, the desired impact velocity is 192.5 in/sec (as shown in Section B-2.3.3). The FEA model velocity at impact is less than this value by less than 0.1%. Therefore, the velocities at the first impact are acceptable.

For the second impact, the desired impact velocity is 527.2 in/sec (as shown in Section B-2.3.4). The FEA model velocity at impact is less than this value by 0.53%. Also, the horizontal velocities are near zero (<

0.13 in/sec) at a time of 0.01 seconds (as is desirable per the discussion in Section B-4.0). Therefore, the velocities at the second impact are acceptable.

For the third impact, the desired impact velocity is 175.7 in/sec (as shown in Section B-2.3.4). The FEA model velocity at impact is more than this value by 1.4%. Also, the horizontal velocities are near zero (< 1.1 in/sec) at a time of 0.01 seconds (as is desirable per the discussion in Section B-4.0). Therefore, the velocities at the third impact are acceptable.

Figure B-4.4 First impact orientation for the CD5 test.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B134 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.4 Second impact orientation for the CD5 test.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B135 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.4 Third impact orientation for the CD5 test.

The impact orientations shown in Figures B-4.4-3 to B-4.4-5 are as desired for this sequential drop scenario.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B136 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Closure handle Figure B-4.4 Full model plastic equivalent strain after the third impact for the CD5 test.

For this sequential drop scenario, there is nothing of particular interest in the time between the first and second impacts or second and third impacts. Given that the damage is cumulative to the end of the model run, results are only presented at the end of the second impact.

The closure handle connection failed in the second impact. With no contact defined between the closure handle and puncture bar in the third impact, the closure handle freely moves away from the FFSC.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B137 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Sheared bayonets Figure B-4.4 Lid plastic equivalent strain after the third impact for the CD5 test.

The plot above shows the two bayonets opposite the corner that is impacted in the first two impacts. There are no failed elements in the bayonets until the third impact. On the third impact, the two bayonets shown are sheared completely off and the other two bayonets are damaged.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B138 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Failed elements behind the two elements Figure B-4.4 Lid body plastic equivalent strain after the third impact for the CD5 test.

The ultimate strain in the lid body is 0.259 in/in (see Table B-2.1-3). The very local strains that exceed this value can be attributed to extrapolation error. Each bayonet that is shown has some failure. One failed element can be seen in the plot and other failed element locations are identified. If elements having high strains are also considered failed, then the undersides of the bayonet outsides could have two bottom row underside elements failed (instead of just the one identified). Also, the one top row inside element could be failed on both bayonets. Even if all the mentioned elements are considered failed, the two bayonets shown are still competent (and the other two are failed).

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B139 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.4 Pins plastic equivalent strain after the third impact for the CD5 test.

The ultimate strain in the pins is 0.295 in/in (see Table B-2.1-3). The pin furthest from the impacted FFSC corner in the first two impact shows partial failure through its cross section. However, it remains competent and the other pin is relatively undamaged. Given the competent bayonets and pins, the stated purpose of this model run (that the lid maintains closure) is met. Therefore, the model results are acceptable.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B140 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.4 FFSC body plastic equivalent strain after the third impact for the CD5 test.

The FFSC body plastic equivalent strains are shown for information.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B141 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.4 Fuel element plastic equivalent strain after the third impact for the CD5 test.

The fuel element plastic equivalent strains are shown for information.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B142 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.4 Fuel element without end boxes shown plastic equivalent strain after the third impact for the CD5 test.

The fuel element plastic without end boxes shown equivalent strains are shown for information.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B143 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.4 Enclosure plastic equivalent strain after the third impact for the CD5 test.

The enclosure plastic equivalent strains are shown for information.

B-4.5 Results for the CD-New (10° Rotated) Test The drop scenario considered in this section is a 30-foot side drop [CD2.A-1 in the ATR FFSC SAR (2017)]

sequentially followed by a 40-inch oblique angle lid impact on the puncture bar [CP3-1 in the ATR FFSC SAR (2017)]. Upon impact, the physical drop test spun about the lengthwise axis of the package. The scuff marks in Figures 2.12.1-15 and 2.12.1-16 of the ATR FFSC SAR (2017) make it appear that impact first occurred near the edge. To best accommodate the description of the physical drop, an initial angle of 9.75° about the lengthwise axis of the package is defined to make the edge impact slightly before the index lugs in the FEA model. The rotated impact in this orientation is evaluated for two reasons. First, the downward inertia of the upper pin causes it to disengage. Second, the angled impact causes a significant and sudden angular motion about the long axis of the FFSC. This causes a relative angular motion between the FFSC body and lid which imparts a significant shear load into the one remaining pin. Between impacts, a 2.16-pound load is applied to the upper pin (see the discussion with Figure B-3.0-23 for load definition). In reality, there is a spring to push the pin back into place. The applied 2.16-pound load is selected because it

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B144 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements is sufficient to move the (unobstructed) pin the needed distance during the model time when loads and accelerations are applied between impacts. During the second impact, the length of the loaded FFSC is rotated 28.3º off horizontal. It is also rotated about its long axis so that a rib in the lid is horizontally oriented. The puncture bar is then positioned so that the center of the rib impacts 0.25 inches from its edge.

The second impact setup attempts to further shear the already challenged pin while allowing the relatively undamaged pin to help carry the load.

The main body, Section 2.0, Table 2 provides the fuel element weight and stated purpose of the CD-New (10° Rotated) test. The fuel element weight is 44 lbf. The stated purpose of the model run is defined as demonstrating the integrity of the pins. The FEA model results for the CD-New (10° Rotated) test model are shown below in Figures B-4.5-1 to B-4.5-13. The material properties are defined in Table B-2.1-2 for the FFSC body, Table B-2.1-3 for the FFSC lid, Table B-2.1-5 for the enclosure, and Table B-2.1-8 for the fuel element.

Total energy External work Kinetic energy Artificial strain energy Plastic strain energy Recoverable strain energy Frictional energy Damage dissipation energy Figure B-4.5 CD-New (10° Rotated) test energy curves.

Figure B-4.5-1 shows the energy curves for the CD-New (10° Rotated) test. As is apparent by the kinetic energy, the first impact occurs near a run time of 0.015 seconds and the second impact occurs after a run time of 0.04 seconds. These curves exhibit a stable and acceptable shape.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B145 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements This FEA model is run with a step for each impact. As evidence that both impacts occurred with reasonable initial conditions, Figure B-4.5-2 shows the loaded FFSC velocities for each step and Figures B-4.5-3 and B-4.5-4 show the loaded FFSC orientation near the point of impact.

200 First Impact 0

Velocity [in/sec]

200

- x-direction 400

- y-direction 600 0 0.01 0.02 100 Second Impact Velocity [in/sec]

0 100 200 0 0.01 0.02 0.03 0.04 Time [sec]

Figure B-4.5 Loaded FFSC center-or-gravity velocities for the CD-New (10° Rotated) test.

Figure B-4.5-2 shows the loaded FFSC center-or-gravity velocities for the first and second impacts. For the first impact, the desired impact velocity is 527.2 in/sec (as shown in Section B-2.3.4). The FEA model velocity at impact is less than this value by less than 0.1%. Also, the horizontal velocities are near zero at impact. Therefore, the velocities at the first impact are acceptable.

For the second impact, the desired impact velocity is 175.7 in/sec (as shown in Section B-2.3.5). The FEA model velocity at impact is less than this value by about 3.3%. The horizontal velocities are relatively near zero (< 1.7 in/sec) at a time of 0.01 seconds (as is desirable per the discussion in Section B-4.0). The impact velocity would have been closer to correct, but the impact is calibrated for hitting the rib in lid without consideration of the pin handle. Consequently, the puncture bar impacts the pin handle first and the initial impact occurs just prior to the completion of the loads and accelerations (used to set up the second impact).

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B146 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements However, the applied acceleration is theoretically correct to produce the correct impact energy. Given that a theoretically correct acceleration is applied for the second impact and the horizontal velocities are relatively small, the velocities for the second impact are considered acceptable.

Figure B-4.5 First impact orientation for the CD-New (10° Rotated) test.

Figure B-4.5 Second impact orientation for the CD-New (10° Rotated) test.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B147 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements The impact orientations shown in Figures B-4.5-3 and B-4.5-4 are as desired for this sequential drop scenario. To simplify the contact (and add slight conservatism) there is not contact between the lid handle and puncture bar.

Figure B-4.5 Full model plastic equivalent strain after the second impact for the CD-New (10° Rotated) test.

For this sequential drop scenario, most of the results will be presented after the second impact given that the pin damage is cumulative to the end of the model run. However, pin position and damage at the end of the first step is also useful information and will be presented.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B148 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.5 Lid plastic equivalent strain after the first impact for the CD-New (10° Rotated) test.

As can be seen in the plot, the inertia of the pin opposite the impacted side has caused it to disengage from the FFSC body. As a result, the lower pin must carry all the relative angular motion between the FFSC body and lid.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B149 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.5 Pins plastic equivalent strain after the first impact for the CD-New (10° Rotated) test.

The ultimate strain in the pins is 0.295 in/in (see Table B-2.1-3). The pins do not show any failure at the end of the first impact.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B150 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.5 Lid plastic equivalent strain after the second impact for the CD-New (10° Rotated) test.

As can be seen in the plot, the pin opposite the impacted side did not fully reengage the FFSC body but it engaged sufficiently to be competent.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B151 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.5 Pins plastic equivalent strain after the second impact for the CD-New (10° Rotated) test.

The ultimate strain in the pins is 0.295 in/in (see Table B-2.1-3). The very local strains that exceed this value can be attributed to extrapolation error. The pin nearest the impact shows some failure. However, even if the elements showing high strains are removed, the pin nearest the impact is still competent with half of its cross section remaining. The opposite pin has no failure (or local strains above failure).

Therefore, the model results are acceptable.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B152 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.5 Lid body plastic equivalent strain after the second impact for the CD-New (10° Rotated) test.

The lid body plastic equivalent strains are shown for information.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B153 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.5 FFSC body plastic equivalent strain after the second impact for the CD-New (10° Rotated) test.

The FFSC body plastic equivalent strains are shown for information.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B154 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.5 Fuel element plastic equivalent strain after the second impact for the CD-New (10° Rotated) test.

The fuel element plastic equivalent strains are shown for information.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B155 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.5 Enclosure plastic equivalent strain after the second impact for the CD-New (10° Rotated) test.

The enclosure plastic equivalent strains are shown for information.

B-4.6 Results for the CD5 (Soft) Test The drop scenario considered in this section is a 4-foot drop [CN1-1 in the ATR FFSC SAR (2017)]

sequentially followed by a 30-foot drop [CD5-1 in the ATR FFSC SAR (2017)]. The main body, Section 2.0, Table 2 provides the fuel element weight and stated purpose of the CD5 (Soft) test. The fuel element weight is 44 lbf. The stated purpose of the model run is to show maximum deformation. The FEA model results for the CD5 (Soft) test model are shown below in Figures B-4.6-1 to B-4.6-12. The material properties are defined in Table B-2.1-1 for the FFSC body, Table B-2.1-3 for the FFSC lid, Table B-2.1-5 for the enclosure, and Table B-2.1-8 for the fuel element.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B156 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Total energy External work Kinetic energy Artificial strain energy Plastic strain energy Recoverable strain energy Frictional energy Damage dissipation energy Figure B-4.6 CD5 (Soft) test energy curves.

Figure B-4.6-1 shows the energy curves for the CD5 (Soft) test. As is apparent by the kinetic energy, the first impact occurs near a run time of 0.02 seconds and the second impact occurs after a run time of 0.08 seconds. These curves exhibit a stable and acceptable shape.

This FEA model is run with a step for each impact. As evidence that both impacts occurred with reasonable initial conditions, Figure B-4.6-2 shows the loaded FFSC velocities for each step and Figures B-4.6-3 and B-4.6-4 show the loaded FFSC orientation near the point of impact.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B157 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements 100 First Impact Velocity [in/sec]

0

- x-direction 100

- y-direction 200 0 0.02 0.04 0.06 200 Second Impact 0

Velocity [in/sec]

200 400 600 0 0.01 0.02 0.03 Time [sec]

Figure B-4.6 Loaded FFSC center-or-gravity velocities for the CD5 (Soft) test.

Figure B-4.6-2 shows the loaded FFSC center-or-gravity velocities for the first and second impacts. For the first impact, the desired impact velocity is 192.5 in/sec (as shown in Section B-2.3.3). The FEA model velocity at impact is less than this value by less than 0.1%. Also, the horizontal velocities are near zero at impact. Therefore, the velocities at the first impact are acceptable.

For the second impact, the desired impact velocity is 527.2 in/sec (as shown in Section B-2.3.4). The FEA model velocity at impact is less than this value by about 1.5%. The horizontal velocities are near zero (< 0.3 in/sec) at a time of 0.01 seconds (as is desirable per the discussion in Section B-4.0). Given that a theoretically correct acceleration is applied for the second impact, the velocities for the second impact are considered acceptable.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B158 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.6 First impact orientation for the CD5 (Soft) test.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B159 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.6 Second impact orientation for the CD5 (Soft) test.

The impact orientations shown in Figures B-4.6-3 and B-4.6-4 are as desired for this sequential drop scenario.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B160 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.6 Full model plastic equivalent strain after the second impact for the CD5 (Soft) test.

For this sequential drop scenario, the results will be presented after the second impact given that the damage is cumulative to the end of the model run.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B161 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.6 FFSC body plastic equivalent strain after the second impact for the CD5 (SOFT) test.

The ultimate strain in the FFSC body stainless steel is 0.259 in/in (see Table B-2.1-1). The FFSC body does not show any failure for this model run. Also, the maximum length change is slightly less than one inch.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B162 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.6 Lid plastic equivalent strain after the second impact for the CD5 (SOFT) test.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B163 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.6 Pins plastic equivalent strain after the second impact for the CD5 (SOFT) test.

The ultimate strain in the pins is 0.295 in/in (see Table B-2.1-3). The pins show some deformation but no failure.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B164 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.6 Lid body plastic equivalent strain after the second impact for the CD5 (SOFT) test.

The ultimate strain in the lid body is 0.259 in/in (see Table B-2.1-3). The very local strains that exceed this value can be attributed to extrapolation error. There is some failure in the lid body near the point of impact.

However, even if the elements showing high strains are removed with the failed elements, the lid body maintains FFSC containment. The bayonets show no failure and remain competent.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B165 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.6 Fuel element plastic equivalent strain after the second impact for the CD5 (SOFT) test.

The fuel element deformation occurs primarily near the end box closest to the impact surface. The end box closest to the impact surface completely fails/breaks into fragments.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B166 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.6 Fuel element plastic equivalent strain in the vicinity of the swage after the second impact for the CD5 (SOFT) test.

This FEA model in the vicinity of the swage shows some damage in the ends of the fuel plates. However, the swaged connection between the fuel plates and side plates remains competent. Overall, the fuel geometry in the vicinity of the swage is fairly well maintained with the largest deformations occurring in the end or the fuel plates nearest to the impact surface.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B167 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements Figure B-4.6 Enclosure plastic equivalent strain after the second impact for the CD5 (SOFT) test.

The enclosure plastic equivalent strains on its deformed shape are shown for information.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B168 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements B-5.0 Abbreviated Input Files The input files below are representative of the model run input files. They are reduced primarily to just card definitions. Element and node data represent the biggest portion removed from the file. Using this input file data, referenced documents, and the mesh descriptions in Section B3, generation of a similar complete set of input files should be possible.

In general, short input files were written for individual drop scenarios. These input files used *INCLUDE commands to read in included files (ending in .i) that contained model data. To reduce voluminous data with limited added benefit, reduced input files will be provided for only the benchmark test (input file 1_CN1_1_HEU.inp). This provides an example of how the included files are used.

Using this along with the referenced geometry and mesh descriptions in Section B-3.0, generation of a similar complete input file should be possible. The input files below are run considering units of inches, pounds, and seconds.

1_CN1_1_HEU.inp

  • HEADING Abaqus/Explicit
  • INCLUDE, INPUT=rigid.i
  • INCLUDE, INPUT=fuel_HEU_tough_1.i
  • INCLUDE, INPUT=lid_actual.i
  • INCLUDE, INPUT=body_actual.i
  • INCLUDE, INPUT=enclosure_tough.i
    • ELEMENT CONTROLS
  • SECTION CONTROLS, NAME=DELETION, ELEMENT DELETION=YES
  • SECTION CONTROLS, NAME=NO_DELET, ELEMENT DELETION=NO
    • ASSEMBLY
  • ASSEMBLY, NAME=ASSEMBLY
  • INSTANCE, NAME=RIGID_1, PART=RIGID 0.0, 0.0, 0.0
  • END INSTANCE
  • INSTANCE, NAME=RIGID_2, PART=RIGID 0.86611355, -2.71040665, -0.01702778 0.86611355, -2.71040665, -0.01702778, 0.88921852, -2.71063304, 0.98270524, 1.12304695
  • END INSTANCE
  • INSTANCE, NAME=FUEL, PART=FUEL 0, 4.00464588, 0 0, 40.25464588, 0, -0.92149408, 40.18283133, 0.38169534, -176.59229993
  • END INSTANCE
  • INSTANCE, NAME=LID, PART=LID 0, 4.00464588, 0 0, 40.25464588, 0, -0.92149408, 40.18283133, 0.38169534, -176.59229993
  • END INSTANCE
  • INSTANCE, NAME=BODY, PART=BODY 0, 4.00464588, 0 0, 40.25464588, 0, -0.92149408, 40.18283133, 0.38169534, -176.59229993
  • END INSTANCE

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B169 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements

  • INSTANCE, NAME=ENCLOSURE, PART=ENCLOSURE 0, 4.00464588, 0 0, 40.25464588, 0, -0.92149408, 40.18283133, 0.38169534, -176.59229993
  • END INSTANCE
  • ELSET,ELSET=ALL_BM BODY.CIRC0_3125, BODY.SCREW3_8, FUEL.CIRC0_0625, LID.HANDLE_SCREW, LID.ROLL_PIN,
  • ELSET,ELSET=ALL_SH BODY.SHELL0_195, BODY.SHELL0_375, BODY.SHELL0_1874, BODY.SHELL0_185, BODY.SHELL0_12, ENCLOSURE.SHELL0_09, ENCLOSURE.SHELL0_09W, LID.SHELL0_125, LID.SHELL0_068,
  • ELSET,ELSET=ALL_SO BODY.ACTUAL_OUTER_TUBE, BODY.ACTUAL_BOT_OUTER_PLT, BODY.ACTUAL_TOP_PLATE, ENCLOSURE.ENCLOSEPLT, ENCLOSURE.ENCLOSESHL, ENCLOSURE.ENCLOSEPIN, ENCLOSURE.ENCLOSEWLD, FUEL.FUEL_EL, FUEL.SIDEPLT, FUEL.SIDEPLTWELD, FUEL.ENDBOX, FUEL.ENDBOXWELD, LID.LID_SOLID, LID.PIN_SOLID,
  • ELSET,ELSET=FUSES FUEL.FUSE_FULL FUEL.FUSE_HALF, FUEL.FUSE_3_4, FUEL.FUSE_THIN_FULL, FUEL.FUSE_THIN_HALF, FUEL.FUSE_THIN_3_4, FUEL.FUSE_END_FULL, FUEL.FUSE_END_HALF, FUEL.FUSE_END_3_4,
  • SURFACE, TYPE=ELEMENT, NAME=ALL_CONTACT
ALL_SH, ALL_SO, S1 ALL_SO, S2 ALL_SO, S3 ALL_SO, S4 ALL_SO, S5 ALL_SO, S6
  • SURFACE, TYPE=ELEMENT, NAME=PLT_SIDE PLT_SIDE_S4, S4 PLT_SIDE_S6, S6
  • SURFACE, TYPE=ELEMENT, NAME=PLT_END PLT_END_S2, S2
  • SURFACE, TYPE=ELEMENT, NAME=FUEL_SIDE FUEL_SIDE_S, S1

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B170 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements FUEL_SIDE_S, S2

  • SURFACE, TYPE=ELEMENT, NAME=FUEL_END FUEL_END_S3, S3 FUEL_END_S5, S5
  • SURFACE, TYPE=ELEMENT, NAME=BODY_SUR BODY_SIDE_SPOS, SPOS BODY_BOT_SNEG, SNEG
  • SURFACE, TYPE=ELEMENT, NAME=LID_SUR LID_S1, S1 LID_S2, S2 LID_S4, S4 LID_S6, S6 LID_S3, S3 LID_S5, S5
  • SURFACE, TYPE=ELEMENT, NAME=ENCLOS_SUR ENCLOS_SNEG, SNEG ENCLOS_S2, S2 ENCLO_DOOR_SNEG, SNEG
  • SURFACE, TYPE=NODE, NAME=FUEL_SUR
FUEL,
  • ELSET, ELSET=RIGID_1_SPOS, INSTANCE=RIGID_1 1000,
  • SURFACE, TYPE=ELEMENT, NAME=RIGID_1 RIGID_1_SPOS, SPOS
  • ELSET, ELSET=RIGID_2_SPOS, INSTANCE=RIGID_2 1000,
  • SURFACE, TYPE=ELEMENT, NAME=RIGID_2 RIGID_2_SPOS, SPOS
  • ELSET, ELSET=STIFF_LOAD_DW_S1, INSTANCE=BODY, GENERATE 511642, 511896, 2
  • ELSET, ELSET=STIFF_LOAD_DW_S2, INSTANCE=BODY, GENERATE 511643, 511897, 2
  • SURFACE, TYPE=ELEMENT, NAME=STIFF_LOAD_DW STIFF_LOAD_DW_S1, S1 STIFF_LOAD_DW_S2, S2
  • ELSET, ELSET=STIFF_LOAD_UP_S1, INSTANCE=BODY, GENERATE 509586, 509840, 2
  • ELSET, ELSET=STIFF_LOAD_UP_S2, INSTANCE=BODY, GENERATE 509587, 509841, 2
  • SURFACE, TYPE=ELEMENT, NAME=STIFF_LOAD_UP STIFF_LOAD_UP_S1, S1 STIFF_LOAD_UP_S2, S2
  • ELSET, ELSET=STIFF_TOR_NX_S5, INSTANCE=BODY 508436, 508437, 508440, 508441, 508444, 508445, 508564, 508565, 508568, 508569, 508572, 508573, 509652, 509653, 509656, 509657 509660, 509661, 509780, 509781, 509784, 509785, 509788, 509789, 511708, 511709, 511712, 511713, 511716, 511717, 511836, 511837 511840, 511841, 511844, 511845
  • SURFACE, TYPE=ELEMENT, NAME=STIFF_TOR_NX STIFF_TOR_NX_S5, S5
  • ELSET, ELSET=STIFF_TOR_NZ_S5, INSTANCE=BODY 508404, 508405, 508408, 508409, 508412, 508413, 508468, 508469, 508472, 508473, 508476, 508477, 509620, 509621, 509624, 509625 509628, 509629, 509684, 509685, 509688, 509689, 509692, 509693, 511676, 511677, 511680, 511681, 511684, 511685, 511740, 511741 511744, 511745, 511748, 511749
  • SURFACE, TYPE=ELEMENT, NAME=STIFF_TOR_NZ STIFF_TOR_NZ_S5, S5
  • ELSET, ELSET=STIFF_TOR_PX_S5, INSTANCE=BODY

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B171 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements 508372, 508373, 508376, 508377, 508380, 508381, 508500, 508501, 508504, 508505, 508508, 508509, 509588, 509589, 509592, 509593 509596, 509597, 509716, 509717, 509720, 509721, 509724, 509725, 511644, 511645, 511648, 511649, 511652, 511653, 511772, 511773 511776, 511777, 511780, 511781

  • SURFACE, TYPE=ELEMENT, NAME=STIFF_TOR_PX STIFF_TOR_PX_S5, S5
  • ELSET, ELSET=STIFF_TOR_PZ_S5, INSTANCE=BODY 508532, 508533, 508536, 508537, 508540, 508541, 508596, 508597, 508600, 508601, 508604, 508605, 509748, 509749, 509752, 509753 509756, 509757, 509812, 509813, 509816, 509817, 509820, 509821, 511804, 511805, 511808, 511809, 511812, 511813, 511868, 511869 511872, 511873, 511876, 511877
  • SURFACE, TYPE=ELEMENT, NAME=STIFF_TOR_PZ STIFF_TOR_PZ_S5, S5
  • END ASSEMBLY
    • INTERACTION PROPERTIES
  • SURFACE INTERACTION, NAME=FRIC
  • FRICTION 0.1,
  • SURFACE INTERACTION, NAME=AL_FRIC
  • FRICTION 1.2,
  • CONTACT CLEARANCE, NAME=TOUCH, CLEARANCE=0.0, ADJUST=YES
  • AMPLITUDE, NAME=LINEAR 0., 0., 0.005, 1., 100., 1.
  • AMPLITUDE, NAME=LINEAR1 0., 0., 0.01, 1.
  • AMPLITUDE, NAME=PULLSMOOTH, DEFINITION=SMOOTH STEP 0., 0., 0.1, 0.1, 100., 0.1
  • AMPLITUDE, NAME=SMOOTH, DEFINITION=SMOOTH STEP 0., 0., 0.0075, 1., 100., 1.
  • AMPLITUDE, NAME=SMOOTH1, DEFINITION=SMOOTH STEP 0., 1., 0.0075, 0., 100., 0.
  • AMPLITUDE, NAME=SMOOTH2, DEFINITION=SMOOTH STEP 0., 0., 0.005, 1., 0.01, 0., 100., 0.
  • AMPLITUDE, NAME=IMPULSE, DEFINITION=SMOOTH STEP 0., 0., 0.0001, 1., 0.0099, 1., 0.01, 0.

100., 0.

  • AMPLITUDE, NAME=G_ACC, DEFINITION=SMOOTH STEP 0., 0., 0.0001, 52724.167089, 0.0099, 52724.167089, 0.01, 386.089 100., 386.089
    • Restraints
  • BOUNDARY RIGID_1.1000, 1, 6, 0.0 RIGID_2.1000, 1, 6, 0.0
    • PREDEFINED FIELDS
  • INITIAL CONDITIONS, TYPE=TEMPERATURE ALL, 0.0
  • INITIAL CONDITIONS, TYPE=VELOCITY ALL, 2, -186.73

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B172 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements

    • STEP: CN1
  • STEP, NAME=STEP_1
  • DYNAMIC, EXPLICIT

, 0.035

  • BULK VISCOSITY 0.06, 1.2
    • INTERACTIONS (Abaqus/Explicit)
  • CONTACT
  • CONTACT INCLUSIONS ALL_CONTACT, ALL_CONTACT ALL_CONTACT, RIGID_1
  • CONTACT PROPERTY ASSIGNMENT ALL_CONTACT, ALL_CONTACT, FRIC ALL_CONTACT, RIGID_1, FRIC FUEL_SIDE, PLT_SIDE, AL_FRIC FUEL_END, PLT_END, AL_FRIC
  • CONTACT CLEARANCE ASSIGNMENT FUEL_SIDE, PLT_SIDE, TOUCH FUEL_END, PLT_END, TOUCH
  • DLOAD

, GRAV, 386.089, 0., -1., 0.

  • TEMPERATURE, AMPLITUDE=LINEAR1 TEMP, -5000.

TEMP_THIN, -7000.

TEMP_END, -7000.

  • RESTART, WRITE, OVERLAY, NUMBER INTERVAL=1, TIME MARKS=NO
  • OUTPUT, FIELD, TIME INTERVAL=0.0025
  • NODE OUTPUT A, RF, U, V
  • ELEMENT OUTPUT, DIRECTIONS=YES LE, PE, PEEQ, S, STATUS, TEMP
  • CONTACT OUTPUT
CSTRESS,
  • OUTPUT, HISTORY, VARIABLE=PRESELECT, TIME INTERVAL=0.0001
  • ELSET,ELSET=FFSC
BODY, LID,
  • OUTPUT, HISTORY, TIME INTERVAL=0.0001
  • INTEGRATED OUTPUT, ELSET=ALL ACOM1, ACOM2, ACOM3, UCOM1, UCOM2, UCOM3, VCOM1, VCOM2, VCOM3
  • INTEGRATED OUTPUT, ELSET=FFSC ACOM1, ACOM2, ACOM3, UCOM1, UCOM2, UCOM3, VCOM1, VCOM2, VCOM3
  • INTEGRATED OUTPUT, ELSET=ENCLOSURE ACOM1, ACOM2, ACOM3, UCOM1, UCOM2, UCOM3, VCOM1, VCOM2, VCOM3
  • INTEGRATED OUTPUT, ELSET=FUEL ACOM1, ACOM2, ACOM3, UCOM1, UCOM2, UCOM3, VCOM1, VCOM2, VCOM3
  • MONITOR, NODE=BODY.500000, DOF=2
  • END STEP
    • STEP: CD5

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B173 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements

  • STEP, NAME=STEP_2
  • DYNAMIC, EXPLICIT

, 0.04

  • BULK VISCOSITY 0.06, 1.2
    • INTERACTIONS (Abaqus/Explicit)
  • CONTACT, OP=NEW
  • CONTACT INCLUSIONS ALL_CONTACT , ALL_CONTACT ALL_CONTACT , RIGID_2
  • CONTACT EXCLUSIONS ALL_CONTACT , RIGID_1
  • CONTACT PROPERTY ASSIGNMENT ALL_CONTACT , ALL_CONTACT , FRIC ALL_CONTACT , RIGID_2 , FRIC FUEL_SIDE , PLT_SIDE , AL_FRIC FUEL_END , PLT_END , AL_FRIC
  • DSLOAD, AMPLITUDE=IMPULSE STIFF_LOAD_UP, TRSHR, 5.413233, -0.834902, -0.139756, 0.532359 STIFF_LOAD_DW, TRSHR, 5.413233, 0.834902, 0.139756, -0.532359 STIFF_TOR_PX, TRSHR, 0.025008, -0.69701, -0.117234, -0.707413 STIFF_TOR_NX, TRSHR, 0.025008, 0.69701, 0.117234, 0.707413 STIFF_TOR_PZ, TRSHR, 0.025008, -0.697727, -0.116666, 0.7068 STIFF_TOR_NZ, TRSHR, 0.025008, 0.697727, 0.116666, -0.7068
  • DLOAD, OP=NEW, AMPLITUDE=IMPULSE FFSC, GRAV, 1133.15, -0.168156, -0.985681, -0.012518 ENCLOSURE, GRAV, 2356.513859, 0.113365, -0.99355, 0.002701 FUEL, GRAV, 6110.160375, -0.106496, -0.994087, -0.021187
  • DLOAD, OP=NEW, AMPLITUDE=G_ACC

, GRAV, 1.0, 0.019594, -0.999808, -0.000453

  • RESTART, WRITE, OVERLAY, NUMBER INTERVAL=1, TIME MARKS=NO
  • OUTPUT, FIELD, TIME INTERVAL=0.0025
  • NODE OUTPUT A, RF, U, V
  • ELEMENT OUTPUT, DIRECTIONS=YES LE, PE, PEEQ, S, STATUS, TEMP
  • CONTACT OUTPUT
CSTRESS,
  • OUTPUT, HISTORY, VARIABLE=PRESELECT, TIME INTERVAL=0.0001
  • OUTPUT, HISTORY, TIME INTERVAL=0.0001
  • INTEGRATED OUTPUT, ELSET=ALL ACOM1, ACOM2, ACOM3, UCOM1, UCOM2, UCOM3, VCOM1, VCOM2, VCOM3
  • INTEGRATED OUTPUT, ELSET=FFSC ACOM1, ACOM2, ACOM3, UCOM1, UCOM2, UCOM3, VCOM1, VCOM2, VCOM3
  • INTEGRATED OUTPUT, ELSET=ENCLOSURE ACOM1, ACOM2, ACOM3, UCOM1, UCOM2, UCOM3, VCOM1, VCOM2, VCOM3
  • INTEGRATED OUTPUT, ELSET=FUEL ACOM1, ACOM2, ACOM3, UCOM1, UCOM2, UCOM3, VCOM1, VCOM2, VCOM3
  • MONITOR, NODE=BODY.500000, DOF=2
  • END STEP

rigid.i ----

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B174 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements

  • PART, NAME=RIGID
  • NODE 1000, 0.0000000E+00,-1.0000000E+00, 0.0000000E+00 1001, 5.0000000E+01, 0.0000000E+00, 2.5000000E+01 1002, 5.0000000E+01, 0.0000000E+00,-2.5000000E+01 1003,-5.0000000E+01, 0.0000000E+00,-2.5000000E+01 1004,-5.0000000E+01, 0.0000000E+00, 2.5000000E+01
  • ELEMENT, TYPE=R3D4 , ELSET=RIGID 1000, 1001, 1002, 1003, 1004
  • RIGID BODY,ELSET=RIGID,REF NODE=1000 0.0,
  • END PART

fuel_HEU_tough_1.i ----

  • PART, NAME=FUEL
  • NODE 100000,-1.8761654E+00, 1.0793996E+01, 6.7322835E-02 312230,-2.0821425E+00, 8.5000000E+00, 2.5878740E-01
  • ELEMENT, TYPE=B31 , ELSET=CIRC0_0625 290505, 290716, 290735 290581, 290775, 290774
  • ELEMENT, TYPE=B31 , ELSET=FUSE_FULL 282606, 215039, 211999 282400, 200161, 203213
  • ELEMENT, TYPE=B31 , ELSET=FUSE_HALF 282946, 214639, 211599 282502, 200146, 203061
  • ELEMENT, TYPE=B31 , ELSET=FUSE_3_4 282572, 215079, 212039 282434, 200098, 203173
  • ELEMENT, TYPE=B31 , ELSET=FUSE_THIN_FULL 285162, 215072, 212032 285149, 200197, 203249
  • ELEMENT, TYPE=B31 , ELSET=FUSE_THIN_HALF 285182, 214672, 211632 285155, 200052, 203128
  • ELEMENT, TYPE=B31 , ELSET=FUSE_THIN_3_4 285160, 215112, 212072

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B175 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements 285151, 200123, 203197

  • ELEMENT, TYPE=B31 , ELSET=FUSE_END_FULL 285458, 215054, 212014 285445, 200179, 203231
  • ELEMENT, TYPE=B31 , ELSET=FUSE_END_HALF 285490, 214454, 211412 285451, 200140, 203055
  • ELEMENT, TYPE=B31 , ELSET=FUSE_END_3_4 285456, 215094, 212054 285447, 200105, 203179
  • ELEMENT, TYPE=C3D8I , ELSET=FUEL_EL 100000, 105927, 105952, 102903, 102877, 105926, 105953, 102904, 102876 124015, 151605, 151643, 148603, 148565, 151604, 151642, 148602, 148564
  • ELEMENT, TYPE=C3D8I , ELSET=SIDEPLT 200000, 206171, 206169, 206168, 206170, 200056, 200054, 200053, 200055 290779, 290913, 290736, 290733, 290910, 291313, 291273, 291270, 291310
  • ELEMENT, TYPE=C3D8I , ELSET=SIDEPLTWELD 208614, 218567, 218566, 218684, 218686, 218327, 218326, 218432, 218434 209397, 215238, 215240, 219850, 219849, 209146, 209148, 219610, 219609
  • ELEMENT, TYPE=C3D8I , ELSET=ENDBOX 300000, 304062, 300024, 300036, 304066, 304074, 300060, 300072, 304078 302567, 304106, 304104, 304614, 304628, 304108, 304105, 304615, 304629
  • ELEMENT, TYPE=C3D8I , ELSET=ENDBOXWELD 302368, 304059, 304060, 304064, 304063, 304071, 304072, 304076, 304075 307395, 311925, 311709, 311710, 311917, 311926, 311749, 311750, 311918
  • BEAM SECTION, MATERIAL=AL6061T6, ELSET=CIRC0_0625, SECTION=CIRC, CONTROLS=DELETION, POISSON=0.5 0.03125, 1.0, 0.0, 0.0
  • BEAM SECTION, MATERIAL=FUSE, ELSET=FUSE_FULL, SECTION=CIRC, CONTROLS=DELETION, POISSON=0.5 0.0905,
    • 0.0, 0.0,-1.0

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B176 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements

  • BEAM SECTION, MATERIAL=FUSE, ELSET=FUSE_HALF, SECTION=CIRC, CONTROLS=DELETION, POISSON=0.5 0.0640,
    • 0.0, 0.0,-1.0
  • BEAM SECTION, MATERIAL=FUSE, ELSET=FUSE_3_4, SECTION=CIRC, CONTROLS=DELETION, POISSON=0.5 0.0784,
    • 0.0, 0.0,-1.0
  • BEAM SECTION, MATERIAL=FUSE_THIN, ELSET=FUSE_THIN_FULL, SECTION=CIRC, CONTROLS=DELETION, POISSON=0.5 0.0740,
    • 0.0, 0.0,-1.0
  • BEAM SECTION, MATERIAL=FUSE_THIN, ELSET=FUSE_THIN_HALF, SECTION=CIRC, CONTROLS=DELETION, POISSON=0.5 0.0523,
    • 0.0, 0.0,-1.0
  • BEAM SECTION, MATERIAL=FUSE_THIN, ELSET=FUSE_THIN_3_4, SECTION=CIRC, CONTROLS=DELETION, POISSON=0.5 0.0641,
    • 0.0, 0.0,-1.0
  • BEAM SECTION, MATERIAL=FUSE_END, ELSET=FUSE_END_FULL, SECTION=CIRC, CONTROLS=DELETION, POISSON=0.5 0.0905,
    • 0.0, 0.0,-1.0
  • BEAM SECTION, MATERIAL=FUSE_END, ELSET=FUSE_END_HALF, SECTION=CIRC, CONTROLS=DELETION, POISSON=0.5 0.0640,
    • 0.0, 0.0,-1.0
  • BEAM SECTION, MATERIAL=FUSE_END, ELSET=FUSE_END_3_4, SECTION=CIRC, CONTROLS=DELETION, POISSON=0.5 0.0784,
    • 0.0, 0.0,-1.0
  • SOLID SECTION, ELSET=FUEL_EL, MATERIAL=UALX_FUEL, CONTROLS=DELETION
  • SOLID SECTION, ELSET=SIDEPLT, MATERIAL=AL6061T6, CONTROLS=DELETION
  • SOLID SECTION, ELSET=SIDEPLTWELD, MATERIAL=AL6061W, CONTROLS=DELETION
  • SOLID SECTION, ELSET=ENDBOX, MATERIAL=AL356, CONTROLS=DELETION
  • SOLID SECTION, ELSET=ENDBOXWELD, MATERIAL=AL356W, CONTROLS=DELETION
  • END PART
  • MATERIAL,NAME=FUSE
  • ELASTIC,TYPE=ISOTROPIC 10.E+06, 0.33
  • DENSITY 2.538E-04,
  • EXPANSION,TYPE=ISO 1.0E-05,
  • PLASTIC 37120., 0.

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B177 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements 37121., 0.001

  • DAMAGE INITIATION, CRITERION=DUCTILE 0.001,
  • DAMAGE EVOLUTION, TYPE=DISPLACEMENT, SOFTENING=LINEAR 0.0001,
  • MATERIAL,NAME=FUSE_THIN
  • ELASTIC,TYPE=ISOTROPIC 10.E+06, 0.33
  • DENSITY 2.538E-04,
  • EXPANSION,TYPE=ISO 1.0E-05,
  • PLASTIC 51480., 0.

51481., 0.001

  • DAMAGE INITIATION, CRITERION=DUCTILE 0.001,
  • DAMAGE EVOLUTION, TYPE=DISPLACEMENT, SOFTENING=LINEAR 0.0001,
  • MATERIAL,NAME=FUSE_END
  • ELASTIC,TYPE=ISOTROPIC 10.E+06, 0.33
  • DENSITY 2.538E-04,
  • EXPANSION,TYPE=ISO 1.0E-05,
  • PLASTIC 41900., 0.

41901., 0.001

  • DAMAGE INITIATION, CRITERION=DUCTILE 0.001,
  • DAMAGE EVOLUTION, TYPE=DISPLACEMENT, SOFTENING=LINEAR 0.0001,
  • MATERIAL,NAME=UALX_FUEL
  • ELASTIC,TYPE=ISOTROPIC 10.E+06, 0.33
  • DENSITY 2.585E-4,
    • 2.538E-4,
    • Density is changed to accommodate actual mass
  • PLASTIC 8006.4, 0.

24108.0, 0.205

  • DAMAGE INITIATION, CRITERION=DUCTILE 0.205,
  • DAMAGE EVOLUTION, TYPE=DISPLACEMENT, SOFTENING=LINEAR 0.0,
  • MATERIAL,NAME=AL6061T6
  • ELASTIC,TYPE=ISOTROPIC 10.0E+06, 0.33
  • DENSITY 2.538E-04,
  • PLASTIC 35122.5, 0.

52650.0, 0.152

  • DAMAGE INITIATION, CRITERION=DUCTILE 0.152,
  • DAMAGE EVOLUTION, TYPE=DISPLACEMENT, SOFTENING=LINEAR

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B178 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements 0.0,

  • MATERIAL,NAME=AL6061W
  • ELASTIC,TYPE=ISOTROPIC 10.0E+06, 0.33
  • DENSITY 2.538E-04,
  • PLASTIC 8006.4, 0.

24108.0, 0.205

  • DAMPING, ALPHA=0.0, BETA=0.0000001
  • DAMAGE INITIATION, CRITERION=DUCTILE 0.205,
  • DAMAGE EVOLUTION, TYPE=DISPLACEMENT, SOFTENING=LINEAR 0.0,
  • MATERIAL,NAME=AL356
  • ELASTIC,TYPE=ISOTROPIC 10.3E+06, 0.33
  • DENSITY 2.538E-04,
  • DAMPING, ALPHA=0.0, BETA=0.0000001
  • PLASTIC
    • Plastic and damage values modified to be relatively tough (AL6061) 35122.5, 0.

52650.0, 0.152

  • DAMAGE INITIATION, CRITERION=DUCTILE 0.152,
  • DAMAGE EVOLUTION, TYPE=DISPLACEMENT, SOFTENING=LINEAR 0.0,
  • MATERIAL,NAME=AL356W
  • ELASTIC,TYPE=ISOTROPIC 10.3E+06, 0.33
  • DENSITY 2.538E-04,
  • PLASTIC
    • Plastic and damage values modified to be relatively tough (AL6061) 8006.4, 0.

24108.0, 0.205

  • DAMAGE INITIATION, CRITERION=DUCTILE 0.205,
  • DAMAGE EVOLUTION, TYPE=DISPLACEMENT, SOFTENING=LINEAR 0.0,
  • NSET, NSET=TEMP, INSTANCE=FUEL 200000, 200002, 200004, 200006, 200008, 200010, 200012, 200014, 200016, 200018, 200020, 200022, 200024, 200026, 200028, 200030 215177, 215178, 215179, 215180, 215181, 215182, 215183, 215184, 215185, 215186, 215187, 215188, 215189, 215190, 215191, 215192
  • NSET, NSET=TEMP_END, INSTANCE=FUEL 200058, 200059, 200104, 200105, 200140, 200142, 200178, 200179, 200218, 200219, 200258, 200259, 200298, 200299, 200338, 200339 214894, 214895, 214934, 214935, 214974, 214975, 215014, 215015, 215054, 215055, 215094, 215095, 215117, 215118, 215157, 215158
  • NSET, NSET=TEMP_THIN, INSTANCE=FUEL

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B179 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements 200052, 200054, 200094, 200095, 200122, 200123, 200196, 200197, 200236, 200237, 200276, 200277, 200316, 200317, 200356, 200357 214912, 214913, 214952, 214953, 214992, 214993, 215032, 215033, 215072, 215073, 215112, 215113, 215153, 215154, 215193, 215194

  • ELSET, ELSET=PLT_SIDE_S4, GENERATE, INSTANCE=FUEL 201460, 202846, 1 209252, 209321, 1
  • ELSET, ELSET=PLT_SIDE_S6, GENERATE, INSTANCE=FUEL 201461, 201462, 1 209242, 209317, 1
  • ELSET, ELSET=PLT_END_S2, GENERATE, INSTANCE=FUEL 202920, 204306, 1 207227, 208613, 1 208930, 209005, 1 209322, 209397, 1
  • ELSET, ELSET=FUEL_SIDE_S, GENERATE, INSTANCE=FUEL 100000, 100157, 1 123858, 124015, 1
  • ELSET, ELSET=FUEL_END_S3, GENERATE, INSTANCE=FUEL 101185, 101263, 1 123937, 124015, 1
  • ELSET, ELSET=FUEL_END_S5, GENERATE, INSTANCE=FUEL 100000, 100078, 1 122752, 122830, 1
  • NSET,NSET=ALL, GENERATE, INSTANCE=FUEL 100000, 399999, 1
  • NSET,NSET=FUEL, GENERATE, INSTANCE=FUEL 100000, 399999, 1
  • ELSET,ELSET=ALL, GENERATE, INSTANCE=FUEL 100000, 399999, 1
  • ELSET,ELSET=FUEL, GENERATE, INSTANCE=FUEL 100000, 399999, 1
  • ELSET,ELSET=HALF_YZ, GENERATE, INSTANCE=FUEL 100000, 100631, 1 320000, 320006, 1
  • NSET,NSET=COMB1, GENERATE, INSTANCE=FUEL 127322, 127359, 1 290000, 290656, 1
  • NSET,NSET=COMB2, GENERATE, INSTANCE=FUEL 127246, 127283, 1 290657, 291313, 1

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B180 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements

  • ELSET,ELSET=COMB1, GENERATE, INSTANCE=FUEL 290000, 290389, 1
  • ELSET,ELSET=COMB2, GENERATE, INSTANCE=FUEL 290390, 290779, 1

lid_actual.i ----

  • PART, NAME=LID
  • NODE 400000, 1.8809063E+00, 7.1625000E+01,-1.8809055E+00 430955,-1.3924291E-01, 7.2061378E+01,-2.5000000E+00
  • ELEMENT, TYPE=B31 , ELSET=HANDLE_SCREW 408404, 412124, 412155 408409, 412181, 412198
  • ELEMENT, TYPE=B31 , ELSET=ROLL_PIN 430529, 430774, 430740 430314, 430333, 430337
  • ELEMENT, TYPE=S4R, ELSET=SHELL0_125 408230, 411999, 411997, 412005, 412012 408389, 412193, 412194, 412148, 412146
  • ELEMENT, TYPE=S4R, ELSET=SHELL0_068 430220, 430344, 430444, 430448, 430422 430528, 430954, 430955, 430827, 430826
  • ELEMENT, TYPE=C3D8I, ELSET=LID_SOLID 400000, 400000, 400001, 400003, 400002, 400006, 400007, 400009, 400008 430512, 430942, 430941, 430943, 430940, 430867, 430865, 430866, 430868
  • ELEMENT, TYPE=C3D8I, ELSET=PIN_SOLID 430000, 430001, 430000, 430002, 430003, 430005, 430004, 430006, 430007 430095, 430229, 430226, 430232, 430233, 430220, 430217, 430223, 430224
  • BEAM SECTION, MATERIAL=ACTUAL_LID_BODY, ELSET=HANDLE_SCREW, SECTION=CIRC, CONTROLS=DELETION, POISSON=0.5 0.0745, 0.0, 0.0, 1.0
      • BEAM SECTION, MATERIAL=ACTUAL_LID_BODY, ELSET=SPRING, SECTION=CIRC, CONTROLS=DELETION, POISSON=0.5
    • 0.014,
    • 0.0, 0.0, 1.0

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B181 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements

  • BEAM SECTION, MATERIAL=ACTUAL_LID_BODY, ELSET=ROLL_PIN, SECTION=PIPE, CONTROLS=DELETION, POISSON=0.5 0.046875, 0.20000E-01 0.0, 0.0, 1.0
  • SHELL SECTION, ELSET=SHELL0_125, SECTION INTEGRATION=SIMPSON, MATERIAL=ACTUAL_LID_BODY, CONTROLS=DELETION 0.125,
  • SHELL SECTION, ELSET=SHELL0_068, SECTION INTEGRATION=SIMPSON, MATERIAL=ACTUAL_LID_BODY, CONTROLS=DELETION 0.068,
  • SOLID SECTION, ELSET=LID_SOLID, MATERIAL=ACTUAL_LID_BODY, CONTROLS=DELETION
  • SOLID SECTION, ELSET=PIN_SOLID, MATERIAL=NITRONIC_60, CONTROLS=DELETION
  • END PART
  • MATERIAL,NAME=ACTUAL_LID_BODY
  • ELASTIC,TYPE=ISOTROPIC 28300000, 0.31
  • DENSITY 0.0007511,
  • PLASTIC 44570, 0.0 140800, 0.465
  • DAMAGE INITIATION, CRITERION=DUCTILE 0.465,
  • DAMAGE EVOLUTION, TYPE=DISPLACEMENT, SOFTENING=LINEAR 0.0,
  • MATERIAL,NAME=NITRONIC_60
  • ELASTIC,TYPE=ISOTROPIC 25.8E+06, 0.31
  • DENSITY 7.511E-04,
  • PLASTIC 50096.9, 0.

128250.0, 0.295

  • DAMAGE INITIATION, CRITERION=DUCTILE 0.295,
  • DAMAGE EVOLUTION, TYPE=DISPLACEMENT, SOFTENING=LINEAR 0.0,
  • NSET,NSET=ALL, GENERATE, INSTANCE=LID 400000, 412207, 1 430000, 430955, 1
  • NSET,NSET=LID, GENERATE, INSTANCE=LID 400000, 412207, 1 430000, 430955, 1
  • ELSET,ELSET=LID_SST, GENERATE, INSTANCE=LID 400000, 408229, 1
  • ELSET,ELSET=PINS, GENERATE, INSTANCE=LID 408410, 408417, 1 430000, 430095, 1
  • ELSET,ELSET=HANDLE, GENERATE, INSTANCE=LID 408230, 408409, 1
  • ELSET,ELSET=PUSH_BARS, GENERATE, INSTANCE=LID 430096, 430533, 1
  • ELSET,ELSET=ALL, GENERATE, INSTANCE=LID 400000, 408417, 1

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B182 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements 430000, 430533, 1

  • ELSET,ELSET=LID, GENERATE, INSTANCE=LID 400000, 408417, 1 430000, 430533, 1
  • ELSET,ELSET=HALF_YZ, GENERATE, INSTANCE=LID 404112, 408229, 1 430455, 430533, 1
  • ELSET, ELSET=CAVITY_LID, INSTANCE=LID 400000, 400001, 400002, 400003, 400004, 400005, 400006, 400007, 400008, 400009, 400010, 400011, 400012, 400013, 400014, 400015 430048, 430049, 430050, 430051, 430052, 430053, 430054, 430055
  • ELSET, ELSET=LID_S1, INSTANCE=LID 400004, 400005, 400006, 400007, 400008, 400009, 400010, 400011, 400012, 400013, 400014, 400015, 400016, 400017, 400018, 400019 407919, 407920, 407921, 408135, 408136, 408137, 408138, 408139
  • ELSET, ELSET=LID_S2, INSTANCE=LID 401255, 401256, 401257, 401258, 401259, 401260, 401261, 401262, 401263, 401264, 403311, 403312, 403313, 403314, 403315, 403316 403317, 403318, 403319, 403320, 405367, 405368, 405369, 405370, 405371, 405372, 405373, 405374, 405375, 405376, 407426, 407427 407428, 407429, 407430, 407431, 407432, 407433, 407434, 407435
  • ELSET, ELSET=LID_S3, INSTANCE=LID 400997, 400998, 401448, 401449, 401452, 401453, 401456, 401457, 401924, 401925, 403056, 403057, 403504, 403505, 403508, 403509 403512, 403513, 403980, 403981, 405109, 405110, 405560, 405561, 405564, 405565, 405568, 405569, 406036, 406037, 407168, 407169 407619, 407620, 407623, 407624, 407627, 407628, 408095, 408096
  • ELSET, ELSET=LID_S4, INSTANCE=LID 400000, 400001, 400002, 400003, 400110, 400113, 400116, 400119, 400122, 400125, 400128, 400131, 400134, 400137, 400140, 400143 407739, 407742, 407745, 407748, 407751, 407754, 407757, 407760, 407763, 407766, 407769, 407772
  • ELSET, ELSET=LID_S5, INSTANCE=LID 400020, 400021, 400022, 400023, 402079, 402080, 402081, 402082, 404132, 404133, 404134, 404135, 406191, 406192, 406193, 406194
  • ELSET, ELSET=LID_S6, INSTANCE=LID 400024, 400025, 400026, 400027, 400028, 400029, 400030, 400031, 400032, 400033, 400034, 400035, 400036, 400037, 400038, 400039 407825, 407828, 407831, 407834, 407837, 407840, 407843, 407846, 407908, 407909, 407910, 407911

body_actual.i ----

  • PART, NAME=BODY

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B183 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements

  • NODE 500000, 2.8117598E+00, 7.1666667E+01, 2.8117598E+00 513514,-3.7546232E-07, 2.2509858E+00,-4.1506811E+00
  • ELEMENT, TYPE=B31, ELSET=CIRC0_3125 500317, 500212, 500576 500946, 501208, 501535
  • ELEMENT, TYPE=B31 , ELSET=SCREW3_8 512094, 513441, 513416 512092, 508005, 513441
  • ELEMENT, TYPE=S4R , ELSET=SHELL0_195 501487, 502261, 502257, 502306, 502314 502793, 503774, 503775, 502824, 502823
  • ELEMENT, TYPE=S4R , ELSET=SHELL0_375 501452, 502267, 502268, 502270, 502269 502773, 502954, 503893, 503900, 502963
  • ELEMENT, TYPE=S4R , ELSET=SHELL0_1874 502794, 503909, 503910, 503981, 503980 507405, 508383, 508150, 508144, 508384
  • ELEMENT, TYPE=S4R , ELSET=SHELL0_185 506878, 507948, 507945, 507999, 508001 507403, 508313, 508312, 508383, 508384
  • ELEMENT, TYPE=S4R , ELSET=SHELL0_12 507410, 508385, 508386, 508407, 508406 512057, 500405, 500406, 500403, 500402
  • ELEMENT, TYPE=C3D8I , ELSET=ACTUAL_OUTER_TUBE 506884, 507992, 507993, 508005, 507996, 508006, 508008, 508016, 508012 512132, 513512, 513479, 513481, 513511, 513513, 513480, 513482, 513510
  • ELEMENT, TYPE=C3D8I , ELSET=ACTUAL_BOT_OUTER_PLT 501266, 501943, 501944, 501971, 501970, 501946, 501947, 501981, 501980 511897, 513319, 513288, 513264, 513315, 513320, 513289, 513265, 513316
  • ELEMENT, TYPE=C3D8I , ELSET=ACTUAL_TOP_PLATE 500000, 500000, 500001, 500004, 500003, 500009, 500010, 500013, 500012

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B184 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements 501265, 501925, 501924, 500566, 500567, 501895, 501893, 500525, 500528

  • BEAM SECTION, MATERIAL=ACTUAL_TOP_PLATE, ELSET=CIRC0_3125, SECTION=CIRC, CONTROLS=DELETION, POISSON=0.5 0.15625, 0.57735, 0.57735, -0.57735
  • BEAM SECTION, MATERIAL=F835, ELSET=SCREW3_8, SECTION=CIRC, CONTROLS=DELETION, POISSON=0.5 0.157, 0.57735, 0.57735, -0.57735
  • SHELL SECTION, ELSET=SHELL0_195, SECTION INTEGRATION=SIMPSON, MATERIAL=ACTUAL_INNER_TUBE, CONTROLS=DELETION 0.195,
  • SHELL SECTION, ELSET=SHELL0_375, SECTION INTEGRATION=SIMPSON, MATERIAL=ACTUAL_BOT_INNER_PLT, CONTROLS=DELETION 0.375,
  • SHELL SECTION, ELSET=SHELL0_1874, SECTION INTEGRATION=SIMPSON, MATERIAL=ACTUAL_OUTER_TUBE, CONTROLS=DELETION 0.1874,
  • SHELL SECTION, ELSET=SHELL0_185, SECTION INTEGRATION=SIMPSON, MATERIAL=ACTUAL_OUTER_TUBE, CONTROLS=DELETION 0.185,
  • SHELL SECTION, ELSET=SHELL0_12, SECTION INTEGRATION=SIMPSON, MATERIAL=ACTUAL_INNER_TUBE, CONTROLS=DELETION 0.12,
  • SOLID SECTION, ELSET=ACTUAL_OUTER_TUBE, MATERIAL=ACTUAL_OUTER_TUBE, CONTROLS=DELETION
  • SOLID SECTION, ELSET=ACTUAL_BOT_OUTER_PLT, MATERIAL=ACTUAL_BOT_OUTER_PLT, CONTROLS=DELETION
  • SOLID SECTION, ELSET=ACTUAL_TOP_PLATE, MATERIAL=ACTUAL_TOP_PLATE, CONTROLS=DELETION
  • END PART
  • MATERIAL,NAME=ACTUAL_INNER_TUBE
  • ELASTIC,TYPE=ISOTROPIC 28300000, 0.31
  • DENSITY 7.817E-04,
    • 7.511E-04,
    • Density is changed to accommodate actual mass
  • PLASTIC 36296.4, 0.0 128673, 0.421
  • DAMAGE INITIATION, CRITERION=DUCTILE 0.421,
  • DAMAGE EVOLUTION, TYPE=DISPLACEMENT, SOFTENING=LINEAR 0.0,
  • MATERIAL,NAME=ACTUAL_OUTER_TUBE
  • ELASTIC,TYPE=ISOTROPIC 28300000, 0.31
  • DENSITY 7.817E-04,
    • 7.511E-04,
    • Density is changed to accommodate actual mass
  • PLASTIC 52466.9, 0.0 137654.1, 0.42
  • DAMAGE INITIATION, CRITERION=DUCTILE

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B185 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements 0.42,

  • DAMAGE EVOLUTION, TYPE=DISPLACEMENT, SOFTENING=LINEAR 0.0,
  • MATERIAL,NAME=ACTUAL_TOP_PLATE
  • ELASTIC,TYPE=ISOTROPIC 28300000, 0.31
  • DENSITY 7.817E-04,
    • 7.511E-04,
    • Density is changed to accommodate actual mass
  • PLASTIC 39053.7, 0.0 133236.2, 0.484
  • DAMAGE INITIATION, CRITERION=DUCTILE 0.484,
  • DAMAGE EVOLUTION, TYPE=DISPLACEMENT, SOFTENING=LINEAR 0.0,
  • MATERIAL,NAME=ACTUAL_BOT_OUTER_PLT
  • ELASTIC,TYPE=ISOTROPIC 28300000, 0.31
  • DENSITY 7.817E-04,
    • 7.511E-04,
    • Density is changed to accommodate actual mass
  • PLASTIC 44730.5, 0.0 110350.8, 0.408
  • DAMAGE INITIATION, CRITERION=DUCTILE 0.408,
  • DAMAGE EVOLUTION, TYPE=DISPLACEMENT, SOFTENING=LINEAR 0.0,
  • MATERIAL,NAME=ACTUAL_BOT_INNER_PLT
  • ELASTIC,TYPE=ISOTROPIC 28300000, 0.31
  • DENSITY 7.817E-04,
    • 7.511E-04,
    • Density is changed to accommodate actual mass
  • PLASTIC 33639.9, 0.0 146200, 0.525
  • DAMAGE INITIATION, CRITERION=DUCTILE 0.525,
  • DAMAGE EVOLUTION, TYPE=DISPLACEMENT, SOFTENING=LINEAR 0.0,
  • MATERIAL,NAME=F835
  • ELASTIC,TYPE=ISOTROPIC 28.3E+06, 0.31
  • DENSITY 7.511E-04,
  • PLASTIC 116475.5, 0.

156600.0, 0.071

  • DAMAGE INITIATION, CRITERION=DUCTILE 0.071,
  • DAMAGE EVOLUTION, TYPE=DISPLACEMENT, SOFTENING=LINEAR 0.0,

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B186 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements

  • NSET,NSET=ALL, GENERATE, INSTANCE=BODY 500000, 513514, 1
  • NSET,NSET=BODY, GENERATE, INSTANCE=BODY 500000, 513514, 1
  • ELSET,ELSET=ALL, GENERATE, INSTANCE=BODY 500000, 512143, 1
  • ELSET,ELSET=BODY, GENERATE, INSTANCE=BODY 500000, 512143, 1
  • ELSET,ELSET=HALF_YZ, GENERATE, INSTANCE=BODY 500633, 501265, 1 512142, 512143, 1
  • ELSET, ELSET=CAVITY, INSTANCE=BODY 500020, 500022, 500033, 500034, 500035, 500044, 500046, 500048, 500050, 500052, 500085, 500086, 500090, 500091, 500092, 500106 512054, 512055, 512056, 512057
  • ELSET, ELSET=BODY_BOT_SNEG, INSTANCE=BODY 501452, 501453, 501454, 501455, 501456, 501457, 501458, 501459, 501460, 501461, 501462, 501463, 501464, 501465, 501466, 501467 502770, 502771, 502772, 502773
  • ELSET, ELSET=BODY_SIDE_SPOS, INSTANCE=BODY 507410, 507411, 507412, 507413, 507414, 507415, 507416, 507417, 507418, 507419, 507420, 507421, 507422, 507423, 507424, 507425 512050, 512051, 512052, 512053, 512054, 512055, 512056, 512057

enclosure_tough.i ----

  • PART, NAME=ENCLOSURE
  • NODE 600000, 1.6289917E+00, 6.9375000E+01, 1.1700232E+00 610101, 2.1271110E+00, 2.0925197E+00, 1.0051575E+00
  • ELEMENT, TYPE=S4R , ELSET=SHELL0_09 600348, 601431, 601337, 601331, 601424 608102, 601546, 608796, 608795, 601390
  • ELEMENT, TYPE=S4R , ELSET=SHELL0_09W 608104, 601426, 608845, 601332, 601425 608849, 608873, 609669, 609670, 608874

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B187 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements

  • ELEMENT, TYPE=C3D8I , ELSET=ENCLOSEPLT 600000, 600000, 600001, 600006, 600005, 600212, 600213, 600218, 600217 600347, 600612, 600549, 600550, 600551, 600824, 600818, 600819, 600820
  • ELEMENT, TYPE=C3D8I , ELSET=ENCLOSESHL 600372, 601450, 601390, 601336, 601430, 601547, 601546, 601422, 601543 608103, 601390, 608795, 608776, 601336, 601546, 608796, 608797, 601422
  • ELEMENT, TYPE=C3D8I , ELSET=ENCLOSEPIN 608850, 610081, 610078, 610076, 610080, 610072, 610069, 610067, 610071 608873, 609917, 609913, 609919, 610082, 609918, 609915, 609921, 610085
  • ELEMENT, TYPE=C3D8I , ELSET=ENCLOSEWLD 608206, 609457, 609456, 609452, 609453, 609461, 609460, 609454, 609455 608821, 609532, 609645, 609514, 609530, 609801, 609912, 609891, 609799
  • SHELL SECTION, ELSET=SHELL0_09, SECTION INTEGRATION=SIMPSON, MATERIAL=AL5052THN, CONTROLS=DELETION 0.09,
  • SHELL SECTION, ELSET=SHELL0_09W, SECTION INTEGRATION=SIMPSON, MATERIAL=AL5052W, CONTROLS=DELETION 0.09,
  • SOLID SECTION, ELSET=ENCLOSEPLT, MATERIAL=AL5052, CONTROLS=DELETION
  • SOLID SECTION, ELSET=ENCLOSESHL, MATERIAL=AL5052THN, CONTROLS=DELETION
  • SOLID SECTION, ELSET=ENCLOSEPIN, MATERIAL=STEEL, CONTROLS=DELETION
  • SOLID SECTION, ELSET=ENCLOSEWLD, MATERIAL=AL5052W, CONTROLS=DELETION
  • END PART
  • MATERIAL,NAME=AL5052
  • ELASTIC,TYPE=ISOTROPIC 10.3E+06, 0.33
  • DENSITY 3.31E-04,
    • 2.538E-04,
    • Density is changed to accommodate actual mass
  • PLASTIC
    • Plastic and damage values modified to be relatively tough 28076.1, 0.

38940.0, 0.162

  • DAMAGE INITIATION, CRITERION=DUCTILE 0.162,
  • DAMAGE EVOLUTION, TYPE=DISPLACEMENT, SOFTENING=LINEAR 0.0,
  • MATERIAL,NAME=AL5052THN
  • ELASTIC,TYPE=ISOTROPIC 10.3E+06, 0.33
  • DENSITY 3.31E-04,
    • 2.538E-04,
    • Density is changed to accommodate actual mass

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B188 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements

  • PLASTIC
    • Plastic and damage values modified to be relatively tough 28076.1, 0.

38940.0, 0.162

  • DAMAGE INITIATION, CRITERION=DUCTILE 0.162,
  • DAMAGE EVOLUTION, TYPE=DISPLACEMENT, SOFTENING=LINEAR 0.0,
  • MATERIAL,NAME=AL5052W
  • ELASTIC,TYPE=ISOTROPIC 10.3E+06, 0.33
  • DENSITY 3.31E-04,
    • 2.538E-04,
    • Density is changed to accommodate actual mass
  • PLASTIC
    • Plastic and damage values modified to be relatively tough 28076.1, 0.

38940.0, 0.162

  • DAMAGE INITIATION, CRITERION=DUCTILE 0.162,
  • DAMAGE EVOLUTION, TYPE=DISPLACEMENT, SOFTENING=LINEAR 0.0,
    • Good material data is not given for the steel. It just says
    • STEEL CORROSION RESISTING BODY. The material will be approximated
    • as 304 stainless steel for now.
  • MATERIAL,NAME=STEEL
  • ELASTIC,TYPE=ISOTROPIC 28.3E+06, 0.31
  • DENSITY 7.511E-04,
  • PLASTIC 30031.8, 0.

97500.0, 0.259

  • DAMAGE INITIATION, CRITERION=DUCTILE 0.259,
  • DAMAGE EVOLUTION, TYPE=DISPLACEMENT, SOFTENING=LINEAR 0.0,
  • NSET,NSET=ALL, GENERATE, INSTANCE=ENCLOSURE 600000, 610101, 1
  • NSET,NSET=ENCLOSURE, GENERATE, INSTANCE=ENCLOSURE 600000, 610101, 1
  • ELSET,ELSET=ALL, GENERATE, INSTANCE=ENCLOSURE 600000, 608873, 1
  • ELSET,ELSET=ENCLOSURE, GENERATE, INSTANCE=ENCLOSURE 600000, 608873, 1
  • ELSET,ELSET=HALF_YZ, GENERATE, INSTANCE=ENCLOSURE 600086, 600173, 1 608836, 608849, 1
  • ELSET,ELSET=ENCL_DOOR, GENERATE, INSTANCE=ENCLOSURE 600348, 600373, 1 608850, 608873, 1
  • ELSET, ELSET=ENCLO_DOOR_SNEG, INSTANCE=ENCLOSURE

TEM-10200-1, Rev. 12 ECAR-5644, Rev. 2 ENGINEERING CALCULATIONS AND ANALYSIS 04/12/2021 Page B189 of B189 Selected Sequential Drop Analyses for the ATR FFSC with Heavier LEU Fuel Elements 600348, 600349, 600350, 600351, 600352, 600353, 600354, 600355, 600356, 600357, 600358, 600359, 600360, 600361, 600362, 600363 608232, 608233, 608234, 608548, 608549, 608550, 608551, 608553, 608554, 608555, 608556, 608557, 608558, 608559

  • ELSET, ELSET=ENCLOS_SNEG, INSTANCE=ENCLOSURE 600374, 600375, 600376, 600403, 600404, 600405, 600440, 600441, 600442, 600443, 600444, 600445, 600446, 600447, 600448, 600449 608842, 608843, 608844, 608845, 608846, 608847, 608848, 608849
  • ELSET, ELSET=ENCLOS_S2, INSTANCE=ENCLOSURE 600000, 600001, 600002, 600003, 600004, 600005, 600006, 600007, 600008, 600009, 600010, 600011, 600012, 600013, 600014, 600015 608816, 608817, 608818, 608819, 608820, 608821
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