超弹性夹芯覆盖层抗冲击性能分析及实验研究

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (5) : 132-134.

论文

超弹性夹芯覆盖层抗冲击性能分析及实验研究

章振华1; 谌勇1; 华宏星1; 汪玉2; 张志谊1; 黄修长1; 蒋爱华1

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Simulation and experimental research of the hyperelastic sandwich coatings in crush dynamics

Zhang Zhen-hua1，Chen Yong 1，Hua Hong-xing 1 ，Wang Yu 2， Zhang Zhi-Yi1， Huang Xiu-chang1 ， Jiang Ai-hua1

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文章历史 +

摘要

对超弹性橡胶夹芯覆盖层抗冲击性能进行了分析。从夹芯覆盖层取一个单胞，对其在中低速冲击下波的传播，冲击能量的缓冲进行了深入研究，进一步明确了超弹性橡胶夹芯覆盖层抗冲击机理。建立了有限元计算模型，试验与仿真结果一致表明，初始缺陷是影响芯层动力学响应的一个重要因素，惯性效应是导致超弹性橡胶夹芯覆盖层平台应力大幅度上升的主要原因，夹芯覆盖层抗屈曲性能能够提升结构对冲击载荷的缓冲作用。

Abstract

The dynamic crush behavior of Hyperelastic Sandwich Coatings is investigated in this paper. Without loss of generality, a unit periodic cell of the coating is studied, including Wave transmission and the crush energy attenuating . The initial imperfection plays an important role in Crush Dynamics. Inertial effect enhances the stress plateau greatly. Stabilization of cores against buckling has a great attenuating effect under shock environment. These effects are illustrated and quantified with the aid of detailed numerical calculations and Experiment.

导出引用

章振华;谌勇;华宏星;汪玉;张志谊;黄修长;蒋爱华 . 超弹性夹芯覆盖层抗冲击性能分析及实验研究[J]. 振动与冲击, 2012, 31(5): 132-134

Zhang Zhen-hua;Chen Yong;Hua Hong-xing ;Wang Yu;Zhang Zhi-Yi;Huang Xiu-chang;Jiang Ai-hua. Simulation and experimental research of the hyperelastic sandwich coatings in crush dynamics[J]. Journal of Vibration and Shock, 2012, 31(5): 132-134