A Study on the Effect of Cohesive Laws on Finite Element Analysis of Crack Propagation Using Cohesive Elements

被引：0
|
作者：
Seo, Hyeong-Seok [1 ]
Baek, Hyung-Chan [1 ]
Kim, Hyun-Gyu [1 ]
机构：
[1] Seoul Natl Univ Sci & Tech, Dept Mech & Automot Engn, Seoul, South Korea
来源：
TRANSACTIONS OF THE KOREAN SOCIETY OF MECHANICAL ENGINEERS A | 2014年 / 38卷 / 04期
关键词：
Finite Element Method; Cohesive Elements; Cohesive Laws; Crack Propagation Analysis;
D O I：
10.3795/KSME-A.2014.38.4.401
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this paper, the effect of cohesive laws on the finite element analysis of crack propagation using cohesive elements is investigated through three-point bending and double cantilever beam problems. The cohesive elements are implemented into ABAQUS/Standard user subroutines(UEL), and the shape of cohesive law is varied by changing parameters in polynomial functions of cohesive traction-separation relations. In particular, crack propagation behaviors are studied by comparing load-displacement curves of the analysis models which have different shapes of cohesive laws with the same values of fracture energy and cohesive strength. Furthermore, the influence of the element size on crack propagation is discussed in this study.
引用
收藏
页码：401 / 407
页数：7
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