Numerical simulation of debris cloud produced in Gong-Hou shield subjected to hypervelocity impact
Debris cloud produced in Gong-Hou shield subjected to hypervelocity impact (HVI) projectile was studied by using numerical simulation.Characteristics of ejecta veil,bumper debris and projectile debris behind Al/Mg bumper,large fragments in debris cloud were studied.Simulation results showed that projectile can be broken into more fragments moving at smaller velocities by Al/Mg bumper,compared with monolithic aluminum alloy bumper.Projectile debris spread in a larger expansion angle,while bumper debris expanded in a small angle for Al/Mg bumper simulation.Also,the ejecta before Al/Mg bumper contained less debris which was about half the number of ejecta fragments before aluminum bumper.All these characters supported that wave impedance-grade bumper was more efficient than monolithic aluminum alloy bumper in defeating hypervelocity projectile and Gong-Hou shield performed better than Whipple shield.
debris cloud wave impedance-grade material protection shield hypervelocity impact space debris
Hou Mingqiang Gong Zizheng Xu Kunbo Zheng Jiandong Cao Yan Niu Jinchao
National Key Laboratory of Science and Technology on Reliability and Environment Engineering,Beijing National Key Laboratory of Science and Technology on Reliability and Environment Engineering,Beijing
国内会议
咸阳
英文
1-13
2013-08-01（万方平台首次上网日期，不代表论文的发表时间）