摘要
为了研究某RDX基温压炸药的爆炸威力,对该温压炸药进行了Ф25 mm圆筒试验和野外静爆试验,采用ANSYS/LS-DYNA有限元软件对圆筒试验的过程进行数值模拟,得到了该温压炸药爆轰产物的JWL状态方程参数。引入JWL-Miller模型对温压炸药在野外静爆条件下的冲击波传播过程进行数值模拟,将模拟结果与试验结果进行比对,确定了Miller模型中的铝粉二次反应速率参数。结果表明:运用所得JWL-Miller模型参数模拟得到的冲击波参数与静爆试验测得数据吻合较好,平均相对误差小于±5%。
In order to study the blast power of RDX-based thermobaric explosive（ TBE）,the cylinder test with diameter 25 mm and static explosion experiment were carried out. The parameters of Jones-Wilkins-Lee（ JWL） equation of state were obtained by simulating the cylinder test with ANSYS/LS-DYNA. JWL-Miller model was introduced to simulate the propagation process of shock waves of TBE. The parameters of secondary reacting rate of Aluminums powder were determined by adjusting the calculated results according to the test results. Results indicate that the parameters of shock waves from numerical simulation with modified JWL-Miller model can fit the experiments in free field with an average relative error less than ±5%.
出处
《含能材料》
EI
CAS
CSCD
北大核心
2017年第3期226-231,共6页
Chinese Journal of Energetic Materials
基金
江苏省自然科学基金-青年基金项目(BK20150780)
江苏高校优势学科建设工程资助项目
关键词
爆炸力学
温压炸药
圆筒试验
数值模拟
静爆试验
后燃效应
mechanics of explosion
thermobaric explosive
cylinder test
numerical simulation
static explosion experiments
afterburning reaction
