国防科技大学学报2017，Vol.39Issue(2)：57-63,7.DOI:10.11887/j.cn.201702008
填充式波纹夹层结构超高速撞击特性仿真
Simulation on hypervelocity impact characteristics of stuffed corrugation-cored sandwiches
摘要
Abstract
Based on the demand of the spacecraft protection against the orbital debris, numerical simulation of a new designed stuffed corrugation-cored sandwich under hypervelocity impact was carried out.The hypervelocity impact process was obtained, and thereby the perforation of the sandwich and the characteristics of the debris cloud were analyzed.It can be seen that the phenomenon of stuffed corrugation-cored sandwich under hypervelocity impact is similar to that of Whipple structure, but the head velocity of the debris cloud is lower and the expansion velocity and expansion angle is larger.With the impact velocity increasing from 3 km/s to 10 km/s, the size of the sandwich perforation increases accordingly and the shape of the perforation becomes more irregular.Furthermore, the epoxy stuffed in the sandwich absorbs most impact energy of the debris while the front plate and the corrugation core absorb less energy.The research can provide some references for the design of orbital debris shield.关键词
填充式波纹夹层结构/超高速撞击/穿孔破坏/碎片云特性/能量吸收特性Key words
stuffed corrugation-cored sandwiches/hypervelocity impact/perforation/debris cloud characteristics/energy absorption characteristics分类
航空航天引用本文复制引用
周昊,郭锐,南博华,刘荣忠..填充式波纹夹层结构超高速撞击特性仿真[J].国防科技大学学报,2017,39(2):57-63,7.基金项目
上海航天科技创新基金资助项目(SAST201333) （SAST201333）
