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首页> 外文期刊>Journal of aerospace engineering >Failure Model for Rate-Dependent Polymer Matrix Composite Laminates under High-Velocity Impact
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Failure Model for Rate-Dependent Polymer Matrix Composite Laminates under High-Velocity Impact

机译：高速冲击下基于速率的聚合物基复合材料层合板的失效模型

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摘要

A modified Hashin failure model is developed to characterize different failure modes related to high-velocity impact of composite laminates. Hashin's compressive fiber failure mode has been extended to consider the shear stress effect. Several micromechanics-based degradation rules are developed and applied to the stress and material property calculations according to different failure modes after the corresponding failure criterion is satisfied. This model has been implemented into a recently developed microme-chanics model. Computational results show that this model is able to address shear failure, delamination, and tearing failure observed in the high-velocity impact of composite laminates.
机译：开发了改进的Hashin破坏模型，以表征与复合材料层压板的高速冲击有关的不同破坏模式。 Hashin的压缩纤维破坏模式已扩展到考虑剪应力效应。在满足相应的破坏准则后，根据不同的破坏模式，开发了几种基于微力学的退化规则，并将其应用于应力和材料性能计算。该模型已被实现为最近开发的微力学模型。计算结果表明，该模型能够解决复合材料层合板在高速冲击下的剪切破坏，分层和撕裂破坏问题。

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