Numerical estimation of the effects of microcavities on the plastic zone size ahead of the crack tip in aluminum alloy 2024 T3

被引：17
作者：
Bouiadjra, B. Bachir [1 ]
Elmeguenni, M. [1 ,2 ]
Benguediab, M. [1 ]
Belhouari, M. [1 ]
Nait-Abdelaziz, M. [2 ]
机构：
[1] Univ Djillali Liabes Sidi Bel Abbes, Dept Mech Engn, LMPM, Sidi Bel Abbes 22000, Algeria
[2] USTL, CNRS, Lab Mecan Lille, UMR 8107, F-59655 Villeneuve Dascq, France
来源：
MATERIALS & DESIGN | 2009年 / 30卷 / 03期
关键词：
Crack; Microcavity; Plastic zone; FEM; Plastic strain; Stresses; DUCTILE FRACTURE; VOID GROWTH; INCLUSION;
D O I：
10.1016/j.matdes.2008.05.021
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study the non-linear finite element method is used to analyse the effect of presence of microcavity near a crack tip on the variation of the shape and the size of the plastic zone ahead of the crack tip in the case of confined plasticity. The FE Code Franc2D/L is used to carry out this objective. The effect of the interdistance crack tip-microcavity on the plastic zone size is highlighted. The obtained results show that the presence of the microcavity affects in very significant way the shape and the size of the crack plastic zone. The relative distance between the crack tip and the microcavity has a very important effect on the size of the confined plastic zone. (C) 2008 Elsevier Ltd. All rights reserved.
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收藏
页码：752 / 757
页数：6
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