Letter Sequence RAI |
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Initiation
- Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request
- Acceptance...
- Supplement, Supplement, Supplement
Results
Other: ML23058A279, ML23058A281, ML23058A284, ML23058A286, ML23058A287, ML23059A252, ML23067A441, ML23109A009, ML23115A080, ML23115A082, ML23115A084, ML23115A086, ML23115A320, ML23160A084, ML23160A087, ML23310A163, ML24022A254, ML24022A297, ML24023A003, ML24023A321, ML24046A245, ML24071A099, ML24081A002, ML24094A206, ML24094A207, ML24100A058
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MONTHYEARML23115A0802019-08-16016 August 2019 U.S. Certificate of Competent Authority USA/0208/B(U)F-96, Revision 13 (Japanese Certificate J/61/B(U)F-96), Expired May 28.2022 Project stage: Other ML23058A2862022-07-29029 July 2022 Part 1-Response, Acceptance Review, 2/23/23, Document No. 1 Japanese Certificate of the Competent Authority No. J/2043/B(U)F, Model No. JRF-90Y-950K (English Version) Issued on May 23, 2022 Project stage: Other ML23006A1042023-01-0505 January 2023 Cover Letter from Richard Boyle (DOT) Requesting the Review and Revalidation of the Model No. JRF-90Y-950K Project stage: Request ML23160A0842023-01-0505 January 2023 Email Dated 1/5/23 from Rwboyle (DOT) to Arony (Edlow)-Incomplete Application, Information Request, Japanese Certificate of Competent Authority No. J/2043/B(U)F, Model No. JRF-90Y-950K Project stage: Other ML23046A0402023-02-0202 February 2023 Revised Affidavit Dated 2/3/23, Revalidation Request for the Japanese Certificate of the Competent Authority No. J/2043/B(U)F, Model No. JRF-90Y-950K Project stage: Request ML23115A0812023-02-15015 February 2023 Enclosure 5, Revision 0, Japan Atomic Energy Agency, Statement of Proprietary Information, Revalidation Application for the Japanese Mode No. JRC-80Y-20T Package (J/2045/B(U)F) Project stage: Request ML23058A2842023-02-20020 February 2023 Part 1-Response Acceptance Review, 2-23-23, Document No. 5, Affidavit on the Proprietary Documents of the Application of the Model No. JRF-90Y-950K Project stage: Other ML23310A1632023-02-22022 February 2023 Czech Language and English Translation of the Certificate of the Competent Authority for the Model No. S?Koda MTR Triga Package, CZ/100/B(U)F-6, Revision 0 Project stage: Other ML23058A2792023-02-23023 February 2023 Part 1-Response, Acceptance Review, 2/23/23, Document No. 2-1 (Non-Proprietary) Safety Analysis Report, Application of Design Approval for the Model No. JRF-90Y-950K (J/2043/B(U)F) Project stage: Other ML23058A2812023-02-23023 February 2023 Part 1-Response Acceptance Review, 2-23-23, Document No. No. 3-1 (Non-proprietary), Summary of Change of SAR for JRF-90Y-950K Project stage: Other ML23058A2852023-02-23023 February 2023 Part 1 - Transmittal Letter Dated 2/23/23 from Russell Neely (Edlow International) to Rick Boyle (Dot), Responses of Request for Supplemental Information from NRC on Completeness of the Application for the Model No. JRF-90Y-950K (J/2043/B(U Project stage: Supplement ML23058A2872023-02-23023 February 2023 Part 1-Response, Acceptance Review, 2/23/23, Document No. No. 1-1 (Non-Proprietary), Japanese Certificate of the Competent Authority No. J/2043/B(U)F, Model No. JRF-90Y-950K (English Version) Issued on May 23, 2022 Project stage: Other ML23059A2522023-02-27027 February 2023 Part 2-Response Acceptance Review, 2-27-23, Updated Document No. 4-1 (Non-proprietary) Comparison Table of SAR for Type JRF-90Y-950K Project stage: Other ML23059A2542023-02-27027 February 2023 Part 2 - Transmittal Letter Dated 2/27/23 from Russell Neely (Edlow International) to Rick Boyle (Dot), Responses of Request for Supplemental Information, Completeness of the Application for the Model No. JRF-90Y-950K (J/2043/B(U)F) Project stage: Supplement ML23061A1862023-03-0202 March 2023 Part 3 - Transmittal Letter Dated 3/2/23 from Rick Boyle (DOT) to Norma Garcia Santos (Nrc), Responses to Request for Supplemental Information, Application for the Model No. JRF-90Y-950K (J/2043/B(U)F) Project stage: Supplement ML23115A0792023-03-0303 March 2023 Transmittal Letter from Edlow International Company to the U.S. DOT, Application for Validation of the Model No. JRC-80Y-20T Package (J/2045/B(U)F) Project stage: Request ML23067A4412023-03-16016 March 2023 Application for the Japanese Certificate of Competent Authority No. J/2043/B(U), Revision 2, Model No. JRF-90Y-950K - Accepted for Review - CAC No. 001794 and EPID No. L-2023-DOT-0000 Project stage: Other ML23101A0272023-04-0303 April 2023 Enclosure 3-1, Summary of Changes to the Safety Analysis Report for the Japanese Certificate of Competent Authority Model No. JMS-87Y-18.5T, Revision 1 (J/2044/B(U)F) Project stage: Request ML23115A0822023-04-0303 April 2023 Enclosure 4-1, Comparison Table of the 2019 Safety Evaluation Report (SAR) (J/61/B(U)F-96) and the 2023 SAR (J/2045/B(U)F) for the Model No. JRC-80Y-20T (Non-Proprietary) Project stage: Other ML23115A0842023-04-0303 April 2023 Enclosure 3-1 - Summary of Change of SAR for Model No. JRC-80Y-20T (J/2045/B(U)F) (Non-Proprietary) Project stage: Other ML23115A0862023-04-0303 April 2023 Enclosure 2-1 - Safety Analysis Report for the Japanese Certificate of Competent Authority Model No. JRC-80Y-20T (J/2045/B(U)F) (English) Project stage: Other ML23101A0352023-04-0303 April 2023 Transmittal Letter from R Boyle (DOT) to Dfm Director (Nrc), Revalidation Request for the Model No. JMS-87Y-18.5T (J/2044/B(U)F) Project stage: Request ML23160A0872023-04-11011 April 2023 Email Dated 4/11/23 from Rneely (Edlow) to Rboyle (DOT)-Confirmation of Japanese Certificate of Competent Authority No. J/2043/B(U)F, Model No. JRF-90Y-950K, as Public Records Project stage: Other ML23115A3202023-05-0101 May 2023 Application for the Japanese Certificate of Competent Authority No. J/2045/B(U)F, Revision 14, Model No. Jrc-80y-20t - Accepted for Review - Cost Activity Code/Enterprise Project Identification Number (CAC 001794/EPID L-2023-DOT-0006) Project stage: Other ML23109A0092023-05-0101 May 2023 Application for the Japanese Certificate of Competent Authority No. J/2044/B(U)F, Revision 15, Model No.JMS-87Y-18.5T - Accepted for Review - Cost of Activity Code/Enterprise Project Identification Number (CAC No. 001794/EPID No. L-2023-DOT Project stage: Other ML23136B1662023-05-10010 May 2023 Email from R. Boyle (DOT) to N. Garcia (NRC) Response to the Request for Additional Information for the Revalidation of Japanese Certificate of Approval J/2043/B(U)F for the Model No. JRF-90Y-950K Package, Docket 71-3036 Project stage: Request ML23136B1672023-05-11011 May 2023 Letter from Richard W. Boyle (DOT) to Norma Garcia Santos, Response to the Request for Additional Information for the Revalidation of Japanese Certificate of Approval J/2043/B(U)F for the Model No. JRF-90Y-950K Package, Docket 71-3036 Project stage: Request ML24046A2172023-05-30030 May 2023 Redacted, Attachment-Email Dated 5-30-23 from Ngarcia Santos (NRC) to Rboyle (DOT) Staggered Request for Additional Information for the Revalidation Recommendation of the Model No. JMS-87Y-18.5T, Structural Evaluation Project stage: RAI ML23256A3472023-05-30030 May 2023 Attachment - Email Dated 5-30-23 from Ngarcia Santos (NRC) to Rboyle (DOT) Staggered Request for Additional Information for the Revalidation Recommendation of the Model No. JRC-80Y-20T, Structural Evaluation Project stage: RAI ML23256A3482023-05-30030 May 2023 Email Dated 5-30-23 from Ngarcia Santos (NRC) to Rboyle (DOT) Staggered Request for Additional Information for the Revalidation Recommendation of the Model No. JRC-80Y-20T, Structural Evaluation Project stage: RAI ML23257A0022023-05-30030 May 2023 Attachment-Email Dated 5-30-23 from Ngarcia Santos (NRC) to Rboyle (DOT) Staggered Request for Additional Information for the Revalidation Recommendation of the Model No. JMS-87Y-18.5T, Structural Evaluation Project stage: RAI ML23257A0032023-05-30030 May 2023 Email Dated 5-30-23 from Ngarcia Santos (NRC) to Rboyle (DOT) Staggered Request for Additional Information for the Revalidation Recommendation of the Model No. JMS-87Y-18.5T, Structural Evaluation Project stage: RAI ML23256A3492023-06-0202 June 2023 Email Dated 6-2-23 from Ngarcia Santos (NRC) to Rboyle (DOT) Staggered Request for Additional Information for the Revalidation Recommendation of the Model No. JRC-80Y-20T, Materials Evaluation and General Information Project stage: RAI ML24046A2162023-06-0202 June 2023 Redacted, Attachment-Email Dated 6-2-23 from Ngarcia Santos (NRC) to Rboyle (DOT) Staggered Request for Additional Information for the Revalidation Recommendation of the Model No. JMS-87Y-18.5T, Materials Evaluation and General Information Project stage: RAI ML23256A3502023-06-0202 June 2023 Attachment - Email Dated 6-2-23 from Ngarcia Santos (NRC) to Rboyle (DOT) Staggered Request for Additional Information for the Revalidation Recommendation of the Model No. JRC-80Y-20T, Materials Evaluation and General Information Project stage: RAI ML23257A0042023-06-0202 June 2023 Email Dated 6-2-23 from Ngarcia Santos (NRC) to Rboyle (DOT) Staggered Request for Additional Information for the Revalidation Recommendation of the Model No. JMS-87Y-18.5T, Materials Evaluation and General Information Project stage: RAI ML23257A0052023-06-0202 June 2023 Attachment-Email Dated 6-2-23 from Ngarcia Santos (NRC) to Rboyle (DOT) Staggered Request for Additional Information for the Revalidation Recommendation of the Model No. JMS-87Y-18.5T, Materials Evaluation and General Information Project stage: RAI ML23159A2672023-06-13013 June 2023 Approval of the Request for Withholding Information from Public Disclosure of the Application for Japanese Certificate of Competent Authority No. J/2043/B(U), Model No. JRF-90Y-950K Package (Docket No. 71-3036) Project stage: Withholding Request Acceptance ML23152A2042023-06-13013 June 2023 Safety Evaluation Report for the Revalidation of the Japanese Certificate of Competent Authority No. J/2043/B(U)-96 for the Model No. JRF-90Y-950K Project stage: Approval ML23159A0022023-06-14014 June 2023 Enclosure - Request for Additional Information for Japanese Certificate of Competent Authority No. J/2045/B(U)F, Model No. JRC-80Y-20T Package, Revalidation Request (Docket No. 71-3035) Project stage: RAI ML23158A2462023-06-14014 June 2023 Enclosure 1 (Non-Proprietary) - Request for Additional Information for the Japanese Certificate of Competent Authority No. J/2044/B(U)F, Model No. JMS-87Y-18.5T Package, Revalidation Request (Docket No. 71-3004) Project stage: RAI ML23158A2442023-06-14014 June 2023 Transmittal Letter - Request for Additional Information for Japanese Certificate of Competent Authority No. J/2044/B(U)F, Model No. JMS-87Y-18.5T Package, Revalidation Request (Docket No. 71-3004) Project stage: RAI ML24043A2242023-06-20020 June 2023 Letter Dated 6/20/23 from K Tsuchiya (Jaea) to R W Boyle (Dot), Responses to Requests for Additional Information for the Revalidation Recommendation for the Model No. JMS-87Y-18.5T, Japanese Certificate of Competent Authority No. J/2044/B(U Project stage: Response to RAI ML24043A2202023-06-26026 June 2023 Affidavit 6/26/23 - Responses to Requests for Additional Information (Rais) for the Revalidation Recommendation for the Model No. JMS-87Y-18.5T, Japanese Certificate of Competent Authority No. J/2044/B(U)F, Docket No. 71-3004 Project stage: Response to RAI ML24043A2222023-06-27027 June 2023 Enclosure 1 - Responses to Requests for Additional Information (Rais) for the Revalidation Recommendation for the Model No. JMS-87Y-18.5T, Japanese Certificate of Competent Authority No. J/2044/B(U)F, Docket No. 71-3004, June 27, 2023 Project stage: Response to RAI ML24043A2232023-06-27027 June 2023 Letter Dated 6/27/23 from Rboyle (DOT) to Ngarcia Santos (NRC) Responses to Requests for Additional Information for the Revalidation Recommendation for the Model No. JMS-87Y-18.5T, Japanese Certificate of Competent Authority No. J/2044/B(U) Project stage: Response to RAI ML24044A1182023-06-27027 June 2023 Responses to Requests for Additional Information (Rais) for the Revalidation Recommendation for the Model No. JRC-80Y-20T, Docket No. 71-3035, June 27, 2023 Project stage: Response to RAI ML23212B1012023-07-12012 July 2023 NRC 699 - 7/12/23, Conference Summary Call, NRC, DOT, Edlow, and DOE, Discussion of Responses to Requests for Additional Information for the Model Nos. JMS-87Y-18.5T and JRC-80Y-20T Revalidation Requests (Docket No. 71-3004 and 71-3035) Project stage: RAI ML23213A1322023-07-27027 July 2023 Email Dated 7-27-23 from Rneely (Edlow) to Ngarcia Santos (NRC) Subject: Proprietary Review of Teleconference Call Summary to Discuss RAI Responses for the Revalidation of the Model Nos. JMS-87Y-18.5T and JRC-80Y-20T Certificates Project stage: Meeting ML23212B0732023-07-31031 July 2023 Enclosure - 7/12/23, Conference Summary Call, NRC, DOT, Edlow, and DOE, Discussion of Responses to Requests for Additional Information for the Model Nos. JMS-87Y-18.5T and JRC-80Y-20T Revalidation Requests (Docket No. 71-3004 and 71-3035) Project stage: Response to RAI 2023-04-03
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Category:Request for Additional Information (RAI)
MONTHYEARML24046A2452024-02-14014 February 2024 Email Dated 2/14/24 from Rboyle (DOT) to Rneely (Edlow), Revalidation of Model Nos. JMS-87Y-18.5T and JRC-80Y-20T Packages, Response to Letter Jaea, Delay Responses to Fall 2024 ML24046A2442024-02-14014 February 2024 Emails Dated 2/5/24 and 2/14/24 from Rneely (Edlow) to Rboyle (Dot), Follow Up to Responses to Requests for Additional Information for the Model Nos. JMS-87Y-18.5T and JRC-80Y-20T Packages, Letter Jaea, Delay Responses to Fall 2024 ML24046A2432024-02-13013 February 2024 Letter Dated February 13, 2024, from H Nagadomi (Jaea) to R Boyle (Dot), Jaea Offical Letter Revalidation of Model Nos. JMS-87Y-18.5T and JRC-80Y-20T Packages Delaying the Responses to RAIs to the Fall of 2024 ML24023A0492023-08-24024 August 2023 Letter Dated 8/24/23 from R. Neely (Edlow) to R. Boyle (Dot), Official Final Responses to RAIs Discussed at the Conference Call on 7/12/23 Regarding the Revalidation Requests of the Model Nos. JMS-87Y-18-5T and JRC-80Y-20T Japanese Packages ML24043A2232023-06-27027 June 2023 Letter Dated 6/27/23 from Rboyle (DOT) to Ngarcia Santos (NRC) Responses to Requests for Additional Information for the Revalidation Recommendation for the Model No. JMS-87Y-18.5T, Japanese Certificate of Competent Authority No. J/2044/B(U) ML24043A2222023-06-27027 June 2023 Enclosure 1 - Responses to Requests for Additional Information (Rais) for the Revalidation Recommendation for the Model No. JMS-87Y-18.5T, Japanese Certificate of Competent Authority No. J/2044/B(U)F, Docket No. 71-3004, June 27, 2023 ML24043A2202023-06-26026 June 2023 Affidavit 6/26/23 - Responses to Requests for Additional Information (Rais) for the Revalidation Recommendation for the Model No. JMS-87Y-18.5T, Japanese Certificate of Competent Authority No. J/2044/B(U)F, Docket No. 71-3004 ML24043A2242023-06-20020 June 2023 Letter Dated 6/20/23 from K Tsuchiya (Jaea) to R W Boyle (Dot), Responses to Requests for Additional Information for the Revalidation Recommendation for the Model No. JMS-87Y-18.5T, Japanese Certificate of Competent Authority No. J/2044/B(U ML23158A2462023-06-14014 June 2023 Enclosure 1 (Non-Proprietary) - Request for Additional Information for the Japanese Certificate of Competent Authority No. J/2044/B(U)F, Model No. JMS-87Y-18.5T Package, Revalidation Request (Docket No. 71-3004) ML23158A2442023-06-14014 June 2023 Transmittal Letter - Request for Additional Information for Japanese Certificate of Competent Authority No. J/2044/B(U)F, Model No. JMS-87Y-18.5T Package, Revalidation Request (Docket No. 71-3004) ML23257A0052023-06-0202 June 2023 Attachment-Email Dated 6-2-23 from Ngarcia Santos (NRC) to Rboyle (DOT) Staggered Request for Additional Information for the Revalidation Recommendation of the Model No. JMS-87Y-18.5T, Materials Evaluation and General Information ML24046A2162023-06-0202 June 2023 Redacted, Attachment-Email Dated 6-2-23 from Ngarcia Santos (NRC) to Rboyle (DOT) Staggered Request for Additional Information for the Revalidation Recommendation of the Model No. JMS-87Y-18.5T, Materials Evaluation and General Information ML23257A0022023-05-30030 May 2023 Attachment-Email Dated 5-30-23 from Ngarcia Santos (NRC) to Rboyle (DOT) Staggered Request for Additional Information for the Revalidation Recommendation of the Model No. JMS-87Y-18.5T, Structural Evaluation ML24046A2172023-05-30030 May 2023 Redacted, Attachment-Email Dated 5-30-23 from Ngarcia Santos (NRC) to Rboyle (DOT) Staggered Request for Additional Information for the Revalidation Recommendation of the Model No. JMS-87Y-18.5T, Structural Evaluation 2024-02-14
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Request for Additional Information Docket No. 71-3004 Model No. JMS-87Y-18.5T Japanese Certificate of Competent Authority J/2044/B(U)F The questions below describe information needed by the staff for it to complete its review of the application and to determine whether the applicant has demonstrated compliance with regulatory requirements.
Structural Review RAI St-1 Provide clarification on how stress concentration effects (higher stresses in the surrounding region of local geometric discontinuities of the component parts) have been accounted for in the fatigue evaluations for the reusable package components. Justify omission of or consider stress concentration effects, where it is applicable.
The application evaluates fatigue for the lifting devices, containment device and tie-down attachments in sections (II)-A.4.4.3.3, (II)-A.10.5, (II)-A.10.6.3(11) and (II)-A.10.6.4(3) of the safety analysis report (SAR). However, the staff could not locate any discussion on consideration of stress concentration factor to account for the effect of any irregularities or discontinuities of the component parts or justification thereof for not considering in the components fatigue evaluations.
The stress concentration factor is typically used to account for the effect of discontinuities such as holes, grooves or notches, bolt threads and head fillets that are not represented in detail in the finite element analysis (FEA) model.
This information is requested to determine compliance with the requirements in paragraphs 613A and 809(f) of the IAEA SSR-6, 2018 Edition.
RAI St-2 Clarify values of the maximum repetitive stress for the cask body lifting lugs considered in section (II)-A.4.4.3.3 of the SAR.
Based on the stress intensity (s) calculation at the hole of the lifting lug in section (II)-A.4.4.3.1, the staff finds that the maximum repetitive stress should be 59 N/mm2 instead of 37.3 N/mm2 considered by the applicant in the evaluation of the cask body lifting lug This information is requested to determine compliance with the requirements in paragraphs 613A and 809(f) of the IAEA SSR-6, 2018 Edition.
RAI St-3 Verify and confirm that the stress amplitudes corresponding to the number of stress cycles from the design fatigue curves are properly adjusted for differences between the moduli of elasticity on the design fatigue curves and that used in the analysis of the component parts to determine allowable repeated peak stress intensity in section (II)-A.10.5 and possibly other sections of the SAR.
Section (II)-A.10.5 of the SAR, evaluates containment devices for the combined repeated peak stress intensity. In this evaluation, the allowable repeated peak stress intensity is determined by multiplying the stress amplitude corresponding to the number of stress cycles from the design fatigue curves by the ratio of modulus of elasticity on the fatigue curves to the modulus of elasticity used in the analysis. Instead, it appears to the staff that the allowable peak stress intensity Page 1 of 4
Request for Additional Information Docket No. 71-3004 Model No. JMS-87Y-18.5T Japanese Certificate of Competent Authority J/2044/B(U)F should be determined by multiplying the stress amplitude by the ratio of modulus of elasticity used in the analysis to the modulus of elasticity on the fatigue curves.
This information is needed to determine compliance with the requirements of the paragraphs 613A of the IAEA SSR-6, 2018 Edition.
RAI St-4 Verify the values in the Repeated Peak Allowable Stress Intensity column of the Table (II)-A.31 and confirm if they are values of the allowable stress intensity range or values of the alternating component, which is half of the allowable stress intensity range. Update this table as necessary, which needs to be worked in conjunction with resolution of other RAIs as applicable.
Section (II)-A.10.5 of the SAR, evaluates containment device and basket components for the combined repeated peak stress intensity. Although conservative, it appears to the staff that the values in the Repeated Peak Allowable Stress Intensity column of the Table (II)-A.31 are values for the alternating component, which is half of the allowable stress intensity range from the applicable design fatigue curves. The values in this column are compared against the combined repeated peak stress intensity values per the analysis and used to derive margin of safety in the design of the components.
This information is needed to determine compliance with the requirements of the paragraphs 613A of the IAEA SSR-6, 2018 Edition.
RAI St-5 Provide a complete evaluation of fatigue for the reusable package components for the 40-year period of use that considers the combined effects of all applicable types of accumulated stress cycles in components during normal service conditions, including the following cycle types (as described in this question):
- a. Lifting cycles
- b. Pressurization cycles
- c. Thermal stress cycles
- d. Vibration cycles The staff needs a complete fatigue evaluation that considers the combined effects of all applicable types of stress cycles during normal service, including consideration of the cycle types listed above. Also, the appropriate number of cycles need to be considered in fatigue evaluation depending upon the type of cycle being evaluated. If certain types of stress cycles are not applicable or negligible for certain components, explain why these are not applicable or are negligible.
If such a complete fatigue evaluation cannot be performed, or if the fatigue evaluation cannot show adequate protection against fatigue failure considering the combined effects of all applicable types of accumulated stress cycles in components, provide the following information:
a.1 a description about how periodic maintenance inspections will be used to identify and address fatigue cracks in components of the package.
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Request for Additional Information Docket No. 71-3004 Model No. JMS-87Y-18.5T Japanese Certificate of Competent Authority J/2044/B(U)F b.1 A description of the corrective actions that will be taken for any detected fatigue cracks, such as analytical flaw evaluation with follow-up inspections, repair/replacement of components with cracks, etc.
The following provide additional descriptions about accumulated stress cycles as provided in the application:
- 1. Lifting cycles - The staff recognizes that these cycles are already evaluated in section (II)-A.4.4.3.3 for the cask body and lid lifting device, section (II)-A.10.6.4(3) for the skid lifting device and table (II)-F.2 of the SAR. However, the staff noted that the lifting cycles are evaluated without considering the other types of stress cycles that may also be accumulated by the lifting devices for the cask body and the lid. To perform an adequate analytical evaluation that demonstrates sufficient safety margin against fatigue failure of these components, the combined effects of accumulated lifting cycles along with other applicable types of accumulated stress cycles in these components (including consideration of cycle types listed herein) on the potential for fatigue of lifting devices should be considered.
- 2. Pressurization and thermal stress cycles - The staff recognize that pressure and thermal cycles are already evaluated in sections (II)-A.10.5 and table II-F.2 for the containment device (i.e., cask body, lid and connecting bolts). However, the staff noted that the containment device pressurization & thermal cycles are evaluated for 1000 cycles over 30 years, which is contrary to the 40-year service life considered for the components fatigue evaluations elsewhere. Also, the staff noted that thermal stress cycles may occur in components due to cyclical fluctuation of spatial temperature gradients within components, which could exceed 1000 cycles over 40-year service life. In addition, the staff noted that this evaluation does not address the potential for fatigue of package components due to the combined effects of other types of stress cycles that may also be accumulated by the containment device components. To perform an adequate analytical evaluation that demonstrates sufficient safety margin against fatigue failure of these components, the combined effects of accumulated pressurization & thermal cycles along with other applicable types of accumulated stress cycles in these components (including consideration of cycle types listed herein) on the potential for fatigue of containment device components should be considered.
- 3. Vibration cycles - The staff noted that section (II)-A.4.7 provide an evaluation that demonstrates that package resonance is a not a concern considering package vibration caused by vehicle transport. The staff also recognizes that the tie-down attachments are already evaluated in section (II)-A.10.6.3(11) of the SAR for fatigue cycles. However, the staff noted that the tie-down attachment components are evaluated for 4000 cycles, which the applicant has inappropriately considered as lifting cycles, and not as vibratory cycles. The package components could experience Page 3 of 4
Request for Additional Information Docket No. 71-3004 Model No. JMS-87Y-18.5T Japanese Certificate of Competent Authority J/2044/B(U)F many vibration cycles from numerous vehicle transports by road during the 40-year service life, which may exceed 4000 lifting cycles considered in the fatigue evaluation. In addition, the staff noted that this evaluation does not address the potential for fatigue of package components due to the combined effects of the accumulation of many vibration cycles resulting from the allowed transports of the package over 40-year service life, along with the accumulation of other applicable types of stress cycles, including consideration of the cycle types listed herein.
To determine that fatigue as not an aging concern, as indicated in section (II)-F of the application, the staff needs a complete fatigue evaluation that considers the combined effects of all applicable types of stress cycles during normal service, including consideration of the cycle types listed above. Also, the appropriate number of cycles need to be considered in fatigue evaluation depending upon the type of cycle being evaluated.
This information is requested to determine compliance with the requirements in paragraphs 503(e), 613, 613A, and 809(f) of the IAEA SSR-6, 2018 Edition.
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