Prediction of brittle fracture of RPV steels under complex loading on the basis of a local probabilistic approach

被引：12
|
作者：
Margolin, BZ
Kostylev, VI
Keim, E
机构：
[1] Cent Res Inst Struct Mat Prometey, St Petersburg 191015, Russia
[2] Framatome ANP GmbH, Erlangen, Germany
来源：
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING | 2004年 / 81卷 / 12期
关键词：
brittle fracture; warm pre-stressing; probabilistic model; reactor pressure vessel;
D O I：
10.1016/j.ijpvp.2004.04.012
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new local criterion of brittle fracture used to produce a probabilistic model for the temperature dependence of fracture toughness has been modified for non-isothermal and non-monotonic loading. An approach is proposed which allows calculation of the brittle fracture probability for cracked components under complex loading typical, for example, of that in pressurised thermal shock of a reactor pressure vessel. The proposed approach has been verified by comparison of calculated and experimental results for various warm pre-stressing conditions in reactor pressure vessel steels. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：949 / 959
页数：11
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