Numerical simulation of ductile crack growth under cyclic and dynamic loading with a damage-viscoplasticity model

被引：10

作者：

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

Eghbalian, M. ^{[1
]}

Azadi, H. ^{[1
]}

Saffar, H. ^{[1
]}

机构：

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

来源：

ENGINEERING FRACTURE MECHANICS | 2013年 / 99卷

基金：

美国国家科学基金会;

关键词：

Ductile crack propagation; Dynamic/cyclic loading; Continuum damage mechanics; Rate-dependent visco-plasticity; Crack closure effect; SUPERCONVERGENT PATCH RECOVERY; POWDER COMPACTION PROCESSES; FRACTURE; DEFORMATION; FORMULATION; PLASTICITY; INITIATION; MECHANICS; CONTACT; FAILURE;

D O I：

10.1016/j.engfracmech.2012.12.009

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In this paper, the crack propagation in ductile materials is simulated under cyclic and dynamic loading. The adaptive finite element method is used to model the discontinuity due to crack propagation. The ductile fracture assumptions and continuum damage mechanics are utilized to model the material rupture behavior. Moreover both the rate-independent and rate-dependent constitutive equations are elaborated and the crack closure effect and combined hardening model are discussed in addition to some aspects of finite element implementation. Finally, a comparison is performed between the numerical simulation results and those of experiments to illustrate the robustness of proposed computational algorithm. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：169 / 190

页数：22

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