哈尔滨工程大学学报2012，Vol.33Issue(9)：1110-1115,6.DOI:10.3969/j.issn.1006-7043.201110034
高能炸药爆轰过程的广义插值物质点法模拟
Explosion simulation of high explosive materials using the generalized interpolation material point (GIMP)method
摘要
Abstract
Due to the errors caused by a particle crossing the grid boundary, the solution accuracy is low and the calculation stability is poor when using the standard material point method ( MPM) to simulate explosions of high explosive materials. A new method, known as the generalized interpolation material point (GIMP) method, was applied to simulate the HE explosion. Assuming that the gaseous products are inviscid and the explosion process is adiabatic, the governing equations with the Euler form were established. The JWL equation of state is chosen to describe the TNT. The examples of one-dimensional TNT slab detonation and two-dimensional shaped charge detonation were numerically simulated using the GIMP. At some typical moments, the density, internal energy and pressure distribution after initiation of the TNT slab detonation and the speed vector chart and pressure distribution chart during the shaped charge detonation were given. The main physical characteristics of the shaped charge detonation process were captured successfully. Numerical results show that the GIMP has greatly improved accuracy and stability compared to the standard MPM and can simulate explosions of high explosive materials well.关键词
物质点法/广义插值物质点法/高能炸药爆轰/数值模拟Key words
material point method/ generalized interpolation material point/ high explosive explosion/ numerical simulation分类
数理科学引用本文复制引用
陈卫东,杨文淼..高能炸药爆轰过程的广义插值物质点法模拟[J].哈尔滨工程大学学报,2012,33(9):1110-1115,6.基金项目
中央高校基本科研业务费基金资助项目(HEUCFZ1126). （HEUCFZ1126）
