This paper introduces a methodology utilising a ply-ply damage Finite Element models with Genetic algorithm optimisation procedure to investigate the effect of lay-up configuration on the impact absorption properties of fibre metal laminates (FMLs). The methodology was carried out in two steps. In the first step, a pseudo-2D model was used to explore the vast design space to identify potential optimised layup-configurations. In the second step, the optimised configurations were studied in full 3 D, with high fidelity simulations, verifying the results obtained from the optimisation process. The design variables used include thickness and material (including fibre orientation) of each ply. The results produced an optimised configuration consisting of a metallic ply on the impacted side followed by a cross-ply composite lay-up. The results also suggest that the first composite ply (second ply of the FML) should be about 3 times thicker than the other plies.

中文翻译：

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纤维-金属层压板的叠层优化以最大程度地吸收冲击

本文介绍了一种方法，利用带有遗传算法优化程序的层板损伤有限元模型来研究铺层配置对纤维金属层压板 (FML) 的冲击吸收性能的影响。该方法分两步进行。第一步，使用伪二维模型探索广阔的设计空间，以确定潜在的优化铺层配置。在第二步中，优化的配置在全 3D 中进行了研究，具有高保真度的模拟，验证了从优化过程中获得的结果。使用的设计变量包括每层的厚度和材料（包括纤维取向）。结果产生了一个优化的配置，包括在受冲击侧的金属层，然后是交叉层复合材料叠层。