Research on Evaluation Method of Environmental Impact Fatigue in Process of Metal Fatigue Monitoring in Nuclear Power Plant

被引：0

作者：

Luo Y. ^{[1
,2
]}

Liu X. ^{[1
,2
]}

Chen R. ^{[1
,2
]}

Chen X. ^{[1
,2
]}

He D. ^{[1
,2
]}

机构：

[1] China Nuclear Power Design Company, Shenzhen

[2] State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, Shenzhen

来源：

Yuanzineng Kexue Jishu/Atomic Energy Science and Technology | 2018年 / 52卷 / 04期

关键词：

Environment effect; Evaluation method; Fatigue; Strain rate;

D O I：

10.7538/yzk.2017.youxian.0437

中图分类号：

学科分类号：

摘要：

In recent years, the environmental assisted fatigue (EAF) of metal parts in light water reactor has always been a major concern in domestic and international nuclear safety equipment research and regulation. In this paper, the corresponding experimental research data of Japan and U.S. were analyzed in-depth, and the conservative of the Fen calculation result of different metal materials and the sensitivity of the key influence factor were summarized as well. And in combination with domestic actual situation, an assessment method of performing environmental impact fatigue during the process of metal fatigue monitoring in the nuclear power plant was provided with using the Fen correction formula. The result shows that the estimation of environmental impact factor can be carried out at the moment based on the monitoring real transient data in the nuclear power plant with using the Fen correction formula. For the same type of metal materials, the calculation results of fitted Fen formula are very close under different test environments, but the EAF issue in the process of fatigue life assessment of metal parts is not negligible. © 2018, Editorial Board of Atomic Energy Science and Technology. All right reserved.

引用

页码：685 / 690

页数：5

共 8 条

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