A discussion on failure criteria for ordinary state-based peridynamics

被引:47
|
作者
Dipasquale, Daniele [1 ]
Sarego, Giulia
Zaccariotto, Mirco
Galvanetto, Ugo
机构
[1] Univ Padua, Dept Ind Engn, Via Venezia 1, I-35131 Padua, Italy
关键词
State-based peridynamics; Fracture criteria; Dynamic crack propagation; Mixed-mode loading; DYNAMIC CRACK-PROPAGATION; SOLID MECHANICS; MODEL; FRACTURE; DEFORMATION;
D O I
10.1016/j.engfracmech.2017.10.011
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
Peridynamics is a recently proposed nonlocal theory of continuum particularly suitable to describe fracture mechanics, since it employs an integral formulation which remains valid whenever discontinuities are present. In this paper, mixed-mode fracture cases are taken into consideration to numerically evaluate three failure criteria of the nonlocal interaction, called bond, between two material particles. These criteria are related to the maximum stretch of a bond or to the maximum energy that can be stored in a deformed bond. Their advantages and shortcomings are presented and discussed. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码:378 / 398
页数:21
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