ML21230A363

Xlpr Maintenance

ML21230A363
Person / Time
Issue date:	08/18/2021
From:	NRC/RES/DE
To:
Homiack M
Shared Package
ML21230A354	List: ML21230A356 ML21230A357 ML21230A358 ML21230A360 ML21230A361 ML21230A363 ML21230A364 ML21230A366
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Download: ML21230A363 (5)

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xLPR Version 2.2 Maintenance xLPR User Group Meeting August 18, 2021 1

Overview

• EPRI and the U.S. NRC have committed to maintaining and enhancing the xLPR probabilistic fracture mechanics code

• Through the development and release of the code, maintenance requests have been collected from users and developers

- Users can report problems and request new features and enhancements by submitting them to both xlpr@nrc.gov and xlpr@epri.com

- Process is detailed in Section 5.2 of the User Manual

• Maintenance activities are controlled by an xLPR-specific Software Maintenance Plan 2

Current Maintenance Activities

• A new xLPR maintenance cycle is in progress that will develop Version 2.2 of the code

• The current maintenance cycle will correct known issues identified through the leak-before-break application work and incorporate enhancements from early user feedback

- Known issues are detailed in the Release Information included with the User Manual

• Goal is not to make substantial changes as the maintenance team is aware that users are still learning the intricacies of the code 3

Code Enhancements

• Code enhancements are intended to improve the user experience and address obsolescence issues

• Intended upgrades include:

- Framework upgrade

• Target upgrade to GoldSim 12.1

- Current version of xLPR runs on GoldSim Version 11.1.7

- Module updates

- Preprocessor compatibility with 64-bit Excel

- User Manual updates

- Additional user options 4

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