Development of a Cohesive Zone Model for Fatigue Crack Growth

被引：0
|
作者：
Yeong-Hun Choi
Hyun-Gyu Kim
机构：
[1] Seoul National University of Science and Technology,Department of Mechanical and Automotive Engineering
来源：
Multiscale Science and Engineering | 2020年 / 2卷 / 1期
关键词：
Fatigue crack growth; Cohesive zone models; PPR model; Fatigue damage;
D O I：
10.1007/s42493-020-00034-5
中图分类号：
学科分类号：
摘要：
In this study, fatigue damage is combined with a cohesive zone model to simulate fatigue crack growth along the interface between dissimilar materials under repeated loadings. An evolution equation for fatigue damage is considered for the degradation of materials in a failure process zone. The potential-based Park–Paulino–Roesler cohesive model is employed to correctly consider mixed modes in the relationships between cohesive tractions and crack opening separations. Numerical examples show that the present method can predict properly fatigue crack growth along the interface between dissimilar materials under repeated loadings.
引用
收藏
页码：42 / 53
页数：11
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