强激光与粒子束2012，Vol.24Issue(9)：2203-2206,4.DOI:10.3788/HPLPB20122409.2203
超高速撞击产生碎片云相分布数值模拟
Numerical simulation of phase distribution of debris cloud generated by hypervelocity impact
摘要
Abstract
The impact velocity between space debris and spacecraft is normally in excess of 10 km/s. The impact process at such velocity features high temperature, high pressure and high strain rate, along with phase transitions. The vapor occur at the same time. Based on AUTODYN/SPH secondary development, Sesame EOS library and phase diagram of Al are embedded in the AUTODYN/SPH. The simulated hole diameters of bumpers are 9. 02 and 9. 34 mm at the impact velocities of 5. 0 and 5. 6 km/s. The simulation results are consistent well with the experimental results, which shows that the physical modeling and the selection of parameters are reasonable and the method of numerical simulation is correct and valid. The phase distributions of debris cloud generated by hypervelocity impact are computed, and the distribution of gas state, liquid state and solid state in debris cloud is also derived.关键词
超高速撞击/碎片云/相分布/数值模拟Key words
hypervelocity impact/ debris cloud/ phase distribution/ numerical simulation分类
数理科学引用本文复制引用
唐蜜,刘仓理,李平,钟敏,柏劲松,谢龙..超高速撞击产生碎片云相分布数值模拟[J].强激光与粒子束,2012,24(9):2203-2206,4.基金项目
国家国防科学技术工业局资助项目(K020110-1/3/6) （K020110-1/3/6）
国家自然科学基金项目(11002129,11072228) （11002129,11072228）
