Simulation and experimental study on fast cook-off of PBX explosive in strong constraint conditon
In order to study on the response of PBX explosive in strong constraint condition during fast cook-off,the simulation model was built by using Ls-Dyna to predict the ignition point and ignition time of charge, and the effect of flame radiation on charge ignition time was also analyzed.The fast cook-off verify testing was done, and the pressure in shell was measured when charge ignited.The testing results show that the pressure in shell rapid increased to hundreds MPa in few milliseconds, and the charge deflagrated because of the pressure in shell didnt release in time.In addition, to verify the accuracy of pressure measured by pressure sensor in the testing, the deformation of shell was calculated by using LS-Dyna with the measured pressure data, and the simulation results are well agree with the test results.
Fast cook-off Simulation PBX Pressure Test
Gong-jie NIU Song WU Hong-bo WANG Li-xin QIAN Zhong-li ZHANG Zhong-hua LU Bin LIANG Yong-gang LU
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang, Sichuan, China Institute of chemical materials, China Academy of Engineering Physics, Mianyang, Sichuan, China
国际会议
2018 International Conference on Defence Technology (2018国际防务技术会议)
北京
英文
241-246
2018-10-21（万方平台首次上网日期，不代表论文的发表时间）