The extended finite element method for large deformation ductile fracture problems with a non-local damage-plasticity model

被引：44
|
作者：
Broumand, P. [1 ]
Khoei, A. R. [1 ]
机构：
[1] Sharif Univ Technol, Dept Civil Engn, Ctr Excellence Struct & Earthquake Engn, Tehran, Iran
来源：
ENGINEERING FRACTURE MECHANICS | 2013年 / 112卷
基金：
美国国家科学基金会;
关键词：
Large X-FEM deformation; Ductile fracture; Non-local damage-plasticity; Crack propagation; COHESIVE CRACK-GROWTH; X-FEM; DISCONTINUOUS GALERKIN; HARDENING MATERIAL; BLENDING ELEMENTS; CONTACT FRICTION; STRESS-ANALYSIS; PART I; MECHANICS; CONCRETE;
D O I：
10.1016/j.engfracmech.2013.10.002
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
An enriched-FEM technique is presented for the crack growth simulation in large deformation ductile fracture problems using a non-local damage-plasticity model in the framework of eXtended Finite Element Method (X-FEM). The Lemaitre damage-plasticity model is used to capture the material degradation effect, in which the non-locality is enforced by solving a Helmholtz type equation in combination with the governing equation of the system based on an operator-split technique. A convergence study is performed to investigate the performance of X-FEM technique in plasticity problems. The accuracy and effectiveness of proposed X-FEM damage-plasticity model are verified through several numerical examples. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：97 / 125
页数：29
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