Overview of LWR Environment Assisted Fatigue Issues for Primary Components and Piping of NPPs
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摘要: 介绍了目前世界各国对轻水堆(LWR)一级承压设备考虑环境疲劳影响的研究现状以及美国核管会(NRC)导则RG1.207对新建核电厂时考虑环境对疲劳分析影响的要求,对于如何在新建核电厂设计阶段考虑环境对疲劳影响进行了探讨,同时也对如何在美国机械工程师协会(ASME)规范第III卷疲劳分析方法中考虑环境影响提出建议。Abstract: The latest researches on LWR Environment Assisted Fatigue Issues are summarized in this paper.The requirements on EAF analysis for new NPPs of RG 1.207 published by USNRC are also introduced to discuss how to take the consideration of EAF for new NPPs.At the same time,new advice is put forward on incorporating the EAF into the fatigue analysis method of Section III of ASME B&PV Code.
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Key words:
- LWR environment /
- Environment assisted fatigue(EAF) /
- Fatigue analysis /
- RG 1.207
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