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玻纤铝合金层板受低速冲击损伤实验和仿真

DOI: 10.3969/j.issn.1006-7043.201404019

Keywords: 玻璃纤维金属层合板|低速冲击|动态响应|损伤演化|损伤机理

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Abstract:

为了研究GLARE板受冲击载荷下破坏机理。落锤实验分析了GLARE板抗低速冲击性能, 给出了其在实验中的破坏响应。实验分析了该材料的时间接触力曲线、时间变形曲线、时间能量吸收曲线、以及变形接触力曲线变化过程和试件两面的铝合金层的破坏情况。在ABAQUS软件中, 建立了落锤低速冲击的有限元模型。通过对比在不同冲击能量时实验和数值模拟的时间接触力曲线、时间变形曲线、时间能量吸收曲线和铝合金层的破坏, 验证了有限元模型的可靠性。在分析对比不同冲击时复合材料和铝合金破坏之后, 发现复合材料层的破坏程度变化并不大, 相反铝合金层的破坏程度有较大变化, 所以铝合金层在材料整体抗冲击性能起重要作用。

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