TWO DIMENSIONAL NUMERICAL SIMULATION ON SHOCK INITIATION AND DETONATION BEHAVIOR OF IMPACT DAMAGED PBX MATERIAL

摘要：

Impact damage can influence PBX initiation and detonation behavior.A new reaction rate function model is built up based on KIM model.Parameter of the new model is acquired by genetic algorithms.And validation of model is verified by compared simulation results with Forest-Fire model.Two dimensions numerical simulation of PBX is executed to explosives initiation and detonation process by embedded the new model into finite element analysis program.Numerical simulation results arc good agreement with experiment results.The new reaction model can be used to analysis detonation mechanism of damaged explosive while porosity and grains size is changed by impact load.

关键词： explosive,reaction rate function, SDT numerical simulation

作者: Z.Y.Liang F.L.Huang Z.Y.Zhang

作者单位: School of Mechatronice Engineering,North University of China,Taiyuan,030051 China, State Key Laboratory of Explosion Science And Technology,Beijing Institute of Technology,Beijing 100

会议类型: 国际会议

会议名称: 第二届国际非均质材料力学会议(The Second International Conference on Heterogeneous Material Mechanics)

会议地点: 安徽黄山

会议语种:英文

页码: 1455-1458

在线出版日期: 2008-06-03（万方平台首次上网日期，不代表论文的发表时间）