A benchmark study of simulation methods for high-cycle fatigue-driven delamination based on cohesive zone models

被引:40
|
作者
Bak, B. L. V. [1 ]
Turon, A. [2 ]
Lindgaard, E. [1 ]
Lund, E. [1 ]
机构
[1] Aalborg Univ, Dept Mech & Mfg Engn, Fibigerstr 16, DK-9220 Aalborg, Denmark
[2] Univ Girona, Polytech Sch, AMADE, Campus Montilivi S-N, Girona 17071, Spain
关键词
Delamination; Fatigue; Cohesive zone models; Benchmark study; NUMERICAL-SIMULATION; INTERFACE ELEMENTS; PROPAGATION; COMPOSITE;
D O I
10.1016/j.compstruct.2016.11.081
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
New benchmark studies of six different computational methods for simulating fatigue-driven delamination cracks in composite laminated structures under cyclic loading are presented. All the studied methods are based on cohesive zone models and are aimed at high-cycle fatigue simulation. The benchmark studies describe and compare the traction-separation response in the cohesive zone and the transition phase from quasi-static to fatigue loading for each method. Furthermore, the accuracy of the predicted crack growth rate is studied and compared. Studies of the performance of each method in non-self-similar crack growth problems are presented and it is shown that there is a large difference in the accuracy of each method. Finally, studies of the dependency and sensitivity to different quasi-static material parameters and method specific fitting parameters are presented. (C) 2016 Elsevier Ltd. All rights reserved.
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页码:198 / 206
页数:9
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