空隙(复合材料)
材料科学
冲击响应谱
多孔性
机械
分子动力学
铜
休克(循环)
复合材料
化学
经典力学
冶金
物理
计算化学
医学
加速度
内科学
作者
Anupam Neogi,Nilanjan Mitra
摘要
Non-equilibrium molecular-dynamic simulations were carried out on model three-dimensional nano-void copper material with different idealised pore structure and porosity to highlight differences in response behaviour between them when subjected to various piston velocities simulating planar shock loading of different intensities. This article demonstrates and explains from a mechanistic perspective the differences in response observed with respect to Hugoniot elastic limits, dislocation line and jet formation, void collapse mechanism and hot spot generation, specific volume, partial recrystallisation and temperature evolution in void collapsed regions, shock and particle velocity curves.
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