Fatigue simulation for progressive damage in CFRP laminates using intra-laminar and inter-laminar fatigue damage models
Fatigue simulation for progressive damage in CFRP laminates using intra-laminar and inter-laminar fatigue damage models
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DOI：
10.1016/j.ijfatigue.2020.106015
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发表时间：
2021-02-01
影响因子：
6
通讯作者：
Yokozeki, Tomohiro
中科院分区：
文献类型：
--
作者：
Aoki, Ryoma;Higuchi, Ryo;Yokozeki, Tomohiro
本研究提出一种评估复合材料层合板疲劳渐进损伤的模拟方法，使用层内和层间损伤模型。分别采用连续损伤力学和内聚区模型对层内和层间损伤进行了建模，得到了损伤演化规律。本文介绍了一种有限元法与疲劳模型相结合的模拟方法。对弯曲试件进行了疲劳模拟，并将模拟结果与试验结果进行了比较。结果表明，该方法能较好地预测结构的刚度退化和最终失效循环次数。
This study proposes a simulation method to evaluate fatigue progressive damage in composite laminates using intra-laminar and inter-laminar damage models. The intra-laminar and inter-laminar damages are modeled using continuum damage mechanics and cohesive zone model, respectively, and the evolution laws of damages are formulated. A simulation method combining finite element method and fatigue models are described in this paper. Fatigue simulations are conducted on a curved specimen and the results of that are compared with the experimental results. The comparison indicates that the proposed method can predict the stiffness degradation and the number of final failure cycles in good accuracy.