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

页码：949 / 959

页数：11

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