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

作者：Bak B L V^*; Turon A; Lindgaard E; Lund E

来源：Composite Structures, 2017, 164: 198-206.

DOI：10.1016/j.compstruct.2016.11.081

• Delamination
• Fatigue
• Cohesive zone models
• Benchmark study

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.

• 出版日期2017-3-15