Modeling of crack propagation via an automatic adaptive mesh refinement based on modified superconvergent patch recovery technique

被引：96

作者：

Khoei, A. R. ^{[1
]}

Azadi, H. ^{[1
]}

Moslemi, H. ^{[1
]}

机构：

[1] Sharif Univ Technol, Dept Civil Engn, Ctr Excellence Struct & Earthquake Engn, Tehran, Iran

来源：

ENGINEERING FRACTURE MECHANICS | 2008年 / 75卷 / 10期

基金：

美国国家科学基金会;

关键词：

crack propagation; adaptive remeshing; fracture; error control; modified SPR technique;

D O I：

10.1016/j.engfracmech.2008.01.006

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In this paper, an automated adaptive remeshing procedure is presented for simulation of arbitrary shape crack growth in a 2D finite element mesh. The Zienkiewicz-Zhu error estimator is employed in conjunction with a modified SPR technique based on the recovery of gradients using analytical crack-tip fields in order to obtain more accurate estimation of errors. The optimization of crack-tip singular finite element size is achieved through the adaptive mesh strategy. Finally, several numerical examples are illustrated to demonstrate the effectiveness, robustness and accuracy of computational algorithm in calculation of fracture parameters and prediction of crack path pattern. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2921 / 2945

页数：25

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