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兵工学报  2011 

泡沫金属子弹冲击下多孔金属夹芯板动力响应研究

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Keywords: 固体力学,多孔金属,夹芯板,冲击载荷,动力响应,数值模拟

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Abstract:

?采用实验和数值模拟方法研究了多孔金属子弹冲击下多孔金属固支夹芯方板的动力响应。考采用实验和数值模拟方法研究了多孔金属子弹冲击下多孔金属固支夹芯方板的动力响应。考察了子弹冲量、面板厚度、芯层厚度及不同芯层类型对夹芯板抗冲击性能的影响。结果表明,通过增加面板厚度或芯层厚度均能有效控制夹芯板后面板的残余变形,改善其抗冲击能力。在给夹芯板增加相同质量的前提下,增加芯层厚度比增加面板厚度能获得更好的抗冲击效果。结果还表明,在本文研究的冲量范围内夹芯板具有优于等质量单层板的抗冲击能力,而蜂窝芯层构成的夹芯板则具有更优的抗冲击能力。

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