Numerical simulation of stress corrosion cracking in a pipe using s-version FEM

Masanori KikuchiFirst, Yoshitaka Wada, Yuto Shimizu, Yulong Li

科研成果: 书/报告/会议事项章节会议稿件同行评审

1 引用 (Scopus)

摘要

Fracture in heat affected zone (HAZ) in welding has been a serious problem for the integrity of machines. Prediction of fracture behavior due to the residual stress field in HAZ is important. In this paper, S-Version FEM(S-FEM) is applied to simulate the crack growth under thermal and residual stress fields. For evaluation of stress intensity factor, virtual crack closure integral method (VCCM) is employed. The residual stress data was provided by JAEA, Japan Atomic Energy Agency, based on their numerical simulation. SCC crack growth of a surface crack at inner suface of a pipe under thermal residual stress is simulated in three-dimensional filed. Distributions of residual stress is not axi-symmetric along pipe wall, and it affects the crack growth behavior. Ttwo cases, for axi-symmetric and non-symmetric thermal stress distributions, are assumed and crack growth behaviors are obtaiend and discussed.

源语言英语
主期刊名Advances in Fracture and Damage Mechanics IX, FDM 2010
出版商Trans Tech Publications Ltd
577-580
页数4
ISBN(印刷版)9780878492411
DOI
出版状态已出版 - 2011

出版系列

姓名Key Engineering Materials
452-453
ISSN(印刷版)1013-9826
ISSN(电子版)1662-9795

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