异面冲击下金属蜂窝结构平均塑性坍塌应力模型

赵国伟 1,白俊青 1,祁玉峰 2,陈景春 1

振动与冲击 ›› 2016, Vol. 35 ›› Issue (12) : 50-54.

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (12) : 50-54.
论文

异面冲击下金属蜂窝结构平均塑性坍塌应力模型

  • 赵国伟 1,白俊青 1,祁玉峰 2,陈景春 1
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Average Plastic Collapse Stress Model of Metallic Honeycomb Structure under Out-of-plan Impact Load

  • ZHAO Guo-wei 1, BAI Jun-qing 1, QI Yu-feng 2, CHEN Jing-chun 1 
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摘要

在已有的蜂窝结构静态平均塑性坍塌应力理论模型和Cowper-Symonds本构模型的基础上,考虑应变强化效应和双壁厚粘结层,建立了在异面冲击载荷下的金属蜂窝结构平均塑性坍塌应力理论模型。使用LS-DYNA动力学软件模拟了铝合金蜂窝结构在冲击载荷作用下的异面变形,采用仿真和实验数据对理论模型进行了对比验证,结果表明:应用所建立的平均塑性坍塌应力理论模型能够更准确地计算金属蜂窝结构在异面冲击载荷下的平均塑性坍塌应力。

Abstract

Based on the theoretical calculation model of honeycomb structure static plastic collapse stress and Cowper-Symonds model, a metallic honeycomb structure collapse theory model under impact load on consideration of the strain hardening effect and double wall thickness of adhesive layer is established. The dynamics of aluminum alloy honeycomb structure out-of-plan deformation under impact load is simulated using LS-DYNA software. The results show that the plastic collapse theory model can more accurately predict the plastic collapse stress of honeycomb structure under out-of-plane impact loading by comparing with simulation and experimental data.

关键词

蜂窝结构 / 塑性坍塌 / 异面冲击 / 应变强化效应

Key words

honeycomb structure / plastic collapse / out-of-plane impact / strain hardening effect

引用本文

导出引用
赵国伟 1,白俊青 1,祁玉峰 2,陈景春 1. 异面冲击下金属蜂窝结构平均塑性坍塌应力模型[J]. 振动与冲击, 2016, 35(12): 50-54
ZHAO Guo-wei 1, BAI Jun-qing 1, QI Yu-feng 2, CHEN Jing-chun 1 . Average Plastic Collapse Stress Model of Metallic Honeycomb Structure under Out-of-plan Impact Load[J]. Journal of Vibration and Shock, 2016, 35(12): 50-54

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