Probabilistic Fracture Mechanics Round Robin Analysis of Reactor Pressure Vessels during Pressurized Thermal Shock

被引：5
|
作者：
Jhung, Myung Jo [1 ]
Kim, Seok Hun [1 ]
Choi, Young Hwan [1 ]
Chang, Yoon Suk [2 ]
Xu, Xiangyuan [3 ]
Kim, Jong Min [4 ]
Kim, Jong Wook [5 ]
Jang, Changheui [6 ]
机构：
[1] Korea Inst Nucl Safety, Taejon 305338, South Korea
[2] Kyung Hee Univ, Yongin 446701, South Korea
[3] Sungkyunkwan Univ, Suwon 440746, South Korea
[4] Korea Power Engn Co, Taejon 305353, South Korea
[5] Korea Atom Energy Res Inst, Taejon 305353, South Korea
[6] Korea Adv Inst Sci & Technol, Taejon 305701, South Korea
来源：
JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY | 2010年 / 47卷 / 12期
关键词：
pressurized thermal shock (PTS); reactor pressure vessel (RPV); structural integrity; stress intensity factor; warm prestressing (WPS); failure probability; inspection model; INTEGRITY;
D O I：
10.3327/jnst.47.1131
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
In this study, round robin problems for the failure probabilities of a reactor pressure vessel are solved using the probabilistic fracture mechanics code. The flaw distribution and flaw density were modified to incorporate the effects of inspection quality. Then, the impact of the inspection quality and other key parameters on the failure probability was quantitatively evaluated. The results showed that the effect of inspection quality on the failure probability has the same characteristics irrespective of the two quite different transients and the wide range of fluence level. Overall, the various inspection qualities considered in this study resulted in about an order of magnitude difference in failure probability. Additionally, it was found that the effect of warm prestressing on the failure probability depends on the characteristics of the transients.
引用
收藏
页码：1131 / 1139
页数：9
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