Numerical simulation of fatigue crack growth for curved cracks emanating from fastener holes in sheets by the MVCCI method

被引：1

作者：

Theilig, H. ^{[1
]}

Goth, M. ^{[1
]}

Wuensche, M. ^{[1
]}

机构：

[1] Univ Appl Sci Zittau Gorlitz, Dept Mech Engn, Postfach 1455, D-02754 Zittau, Germany

来源：

FRACTURE AND DAMAGE MECHANICS V, PTS 1 AND 2 | 2006年 / 324-325卷

关键词：

fastener hole; multiple crack systems; crack path simulation; curved increment; predictor-corrector procedure; improved modified virtual crack closure integral method; multiple mesh analysis;

D O I：

10.4028/www.scientific.net/KEM.324-325.863

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The paper presents the results of a continued study of curved fatigue crack growth in a multiple arbitrarily pre-cracked isotropic sheet under plane stress loading. The predictor-corrector method (PCM) was extended in order to analyse the growth of multiple crack systems in a finite 2D structure. Together with the recently proposed improved mod fled virtual crack closure integral (MVCCI) method we can obtain accurate SIF values also for interacting cracks, and furthermore we can simulate fatigue crack growth of multiple crack systems in plane sheets under proportional mixed mode loading conditions. As a result, the program PCCS-2D is written to run within ANSYS to simulate interacting curved cracks. In order to check the accuracy and efficiency of the proposed method several example problems are solved. Especially curved cracks emanating from loaded fastener holes in sheets are analysed.

引用

页码：863 / +

页数：2

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