A finite element analysis for the mixed mode crack growth in a viscoelastic and orthotropic medium

被引：11
|
作者：
Pitti, R. Moutou [1 ]
Dubois, F. [1 ]
Pop, O. [1 ]
Absi, J. [1 ]
机构：
[1] Univ Limoges, Ctr Univ Genie Civil Egletons, Grp Etud Mat Heterogenes Civil Engineer & Durabil, F-19300 Egletons, France
来源：
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES | 2009年 / 46卷 / 20期
关键词：
Fracture mechanics; Creep; Mixed-mode crack; Finite element; Conservation integral; FATIGUE-CRACK; FRACTURE; WOOD;
D O I：
10.1016/j.ijsolstr.2009.05.020
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
This paper deals with a finite element algorithm for the creep crack growth process in a viscoelastic medium. The main developments focus on the coupling between the M-integral and an incremental formulation for the viscoelastic behavior. In this context, mixed mode configurations are simulated for orthotropic symmetries. An algorithm uncoupling viscoelastic incremental formulation and the fracture procedure is resolved with finite element software. The global approach is validated in terms of the evolution of energy release rate versus time and the advance of cracks. Numerical simulations are based on a Constant Tension Shear model. The insensitivity of the M-integral to the integration domain is shown from creep crack growth simulations for mixed mode configurations. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3548 / 3555
页数：8
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