爆炸冲击载荷下加筋板塑性动力响应分析

Dynamic Plastic Response Analysis of Stiffened Plates Subjected to Explosive Impact Loading

基于非线性动力学软件Abaqus,对爆炸冲击载荷下的加筋板塑性动力响应行为进行研究,探讨加筋板的结构形式、载荷冲击波波形、材料应变率效应等参数对加筋板塑性动力响应的影响。仿真分析结果表明加筋板结构形式对加筋板抵抗爆炸载荷能力影响较为明显;冲击载荷峰值时间影响加筋板最终塑性变形的大小;应变率效应对加筋板最终塑性变形影响较大。

Based on nonlinear dynamics software Abaqus, plastic dynamic response behavior of stiffened plates under explosive impact loading was studied. The influence from stiffened plates structure form, shock wave of loading and material strain rate effect parameters to plastic dynamic response of stiffened plates were discussed. Simulation results showed that structure form of stiffened plates has more obvious influence on resistance of stiffened plates under blast loading; peak time of blast loading influences the size of the final plastic deformation of stiffened plates ; strain rate effect has greater influence on the final plastic deformation of stiffened plates.