Computer prediction of misaligned welded joints

被引：3

作者：

Lie, ST ^{[1
]}

Lan, S ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Civil & Struct Engn, Singapore 639798, Singapore

来源：

ADVANCES IN ENGINEERING SOFTWARE | 2000年 / 31卷 / 01期

关键词：

misalignment; notch stress; fatigue life; crack propagation; boundary element method;

D O I：

10.1016/S0965-9978(99)00022-8

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Experimental tests have shown that misalignment can reduce the fatigue strength of welded joints significantly. Further theoretical investigations are also required to understand the behavior of these joints. In the present study, boundary element technique together with the hypersingular boundary integral equation are employed to estimate the notch stress concentration factors at the surface. These are then used to predict the fatigue life. The addressed variable is the root crack length, or partial penetration depth, which can be accurately modeled by boundary element method. It is shown that there is a good correlation between the previous experimental results and the present theoretical results. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：65 / 74

页数：10

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