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首页> 外文期刊>Composite Structures >Effects of damage thresholds on stresses in composite laminates under transverse impact
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Effects of damage thresholds on stresses in composite laminates under transverse impact

机译：损伤阈值对横向冲击下复合材料层合板应力的影响

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摘要

Studies on stresses and damage in fiber reinforced polymeric matrix composite laminates subjected to transverse impact are conducted by a 3D finite element analysis. The stress analysis is carried out by developing a constitutive equation including damage variables, therefore, effects of damage and damage thresholds on the stresses in the laminates can be investigated. Effects of damage threshold of matrix materials on stresses suggest suitable matrix materials for composite laminates, which could improve damage tolerance of the composite laminates, and resistance of the composite laminates to impact could be improved significantly by increasing the damage threshold.
机译：通过3D有限元分析，对纤维增强的聚合物基复合材料层压板进行横向冲击时的应力和损伤进行了研究。通过建立包含损伤变量的本构方程来进行应力分析，因此，可以研究损伤和损伤阈值对层压板中应力的影响。基质材料的损伤阈值对应力的影响表明，适合复合材料层压板的基质材料可以提高复合材料层压板的损伤耐受性，并且通过增加损伤阈值可以显着提高复合材料层压板的抗冲击性。

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