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首页> 外文期刊>International journal of impact engineering >Attenuation or enhancement--a one-dimensional analysis on shock transmission in the solid phase of a cellular material
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Attenuation or enhancement--a one-dimensional analysis on shock transmission in the solid phase of a cellular material

机译：衰减或增强-多孔材料固相中冲击传递的一维分析

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摘要

The characteristics of compressive shock wave propagation in the solid phase of a cellular material are studied in the present paper using a one-dimensional mass-spring model. The unique compressive stress strain relation of a cellular material leads to several interesting observations on the characteristic of one- dimensional stress wave transmission in a cellular material, which are important for understanding the blast and impact mitigation and attenuation through a cellular material. Generally, cellular material attenuates impact- or blast-induced loads by cell collapse mechanism at low impact velocities or low pulse pressure intensities when the stress transmission in a cellular material is limited by the plateau stress before the densification stage starts.
机译：本文利用一维质量-弹簧模型研究了多孔材料固相中压缩激波的传播特性。多孔材料的独特压缩应力应变关系导致对多孔材料中一维应力波传输特性的一些有趣观察，这对于理解爆炸和冲击对多孔材料的缓解和衰减非常重要。通常，当在致密化阶段开始之前，细胞材料中的应力传递受到平台应力的限制时，细胞材料在低冲击速度或低脉冲压力强度下通过细胞塌陷机制减弱了冲击或爆炸引起的载荷。

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