SENSITIVITY ANALYSES OF FINITE ELEMENT METHOD FOR COMPUTING RESIDUAL STRESS OF DISSIMILAR METAL MULTI-PASS WELD

被引：0
|
作者：
Tsai, YaoLong [1 ]
Li, ChaoJen
Tsai, TaiPing
Wang, Li-Hua
Fan, TeWei
Chou, ChangPin [1 ]
机构：
[1] Natl Chiao Tung Univ, Hsinchu, Taiwan
来源：
PROCEEDINGS OF THE 18TH INTERNATIONAL CONFERENCE ON NUCLEAR ENGINEERING 2010, VOL 5 | 2011年
关键词：
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Recently the stress corrosion cracking cases of dissimilar metal welds are found in many nuclear power plants. Weld-induced residual stress is main factor for crack growth. Therefore exact estimation of residual stress is important for reliable operation. This paper presents residual stress computation performed by EU mock-up Nozzle. Based on ANSYS software, uncoupled thermal-mechanical three-dimensional (3D) and two-dimensional ax symmetric finite element models are developed. Based on 2 dimensional and 3 dimensional finite element analyses, effect of the welding sequence approaches for multi-pass weld such as lump, layer and ring etc. on residual stress variation is estimated for sensitivity analysis.
引用
收藏
页码：539 / 547
页数：9
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