Three-dimensional BEM analysis for fatigue crack growth in welded components

被引：46

作者：

Cisilino, AP ^{[1
]}

Aliabadi, MH ^{[1
]}

机构：

[1] WESSEX INST TECHNOL,SOUTHAMPTON SO40 7AA,HANTS,ENGLAND

来源：

INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING | 1997年 / 70卷 / 02期

关键词：

D O I：

10.1016/S0308-0161(96)00031-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper a general procedure for the analysis of three-dimensional multiple fatigue crack growth is presented. The crack propagation is simulated using an incremental crack extension analysis based on the strain energy density criterion and the Paris law. For each crack extension the dual boundary element method is used to perform a single region analysis of the cracked component. Stress intensity factors are computed along the crack fronts using a displacement based method. Crack extensions are automatically modelled with the introduction of new boundary elements along the crack fronts and a localized rediscretization in the area where the cracks intersect the free surfaces. The capability of the procedure is demonstrated by solving a number of multiple edge-crack examples. Copyright (C) 1996 Elsevier Science Ltd.

引用

页码：135 / 144

页数：10

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