超高速碰撞下C-SiC复合材料双层防护结构的力学特性  

Mechanical Characteristics of C-SiC Composite Dual-Wall Shield Structure Subjected to Hypervelocity Impact

作　　者：史姣红[1] 李玉龙[1] 刘元镛[1] 索涛[1] 

机构地区：[1]西北工业大学航空学院航空结构工程系,陕西西安710072

出　　处：《高压物理学报》2012年第1期18-26,共9页Chinese Journal of High Pressure Physics

基　　金：国家自然科学基金(10932008;10902090);西北工业大学111引智计划(B07050)

摘　　要：C-SiC复合材料是一种随着航空航天技术发展而研制开发的新型材料,具有优异的力学性能,可以很好地满足航天器防护系统的使用要求,因此其超高速碰撞力学性能研究具有重要意义。基于现有的有关C-SiC复合材料力学性能的实验数据和模拟结果,推导得到模拟C-SiC复合材料超高速碰撞时所需的一系列参数。利用AUTODYN进行数值模拟,获得了C-SiC复合材料双层防护结构在超高速碰撞下的特性及弹道极限曲线,总结得出预测C-SiC复合材料双层防护结构的弹道极限方程。C-SiC composite is a new type of material which is being developed with aerospace technology. C-SiC composite possesses excellent properties and can satisfy the requirements of spacecraft protection system. Therefore it is very significant to study the mechanical behavior of C-SiC composite subjected to hypervelocity impact. Based on current simulations and experiments about C-SiC composite,a set of parameters which are essential for simulating C-SiC composite subjected to hypervelocity impact are derived in this paper. The characteristics of C-SiC composite dual-wall shield under hypervelocity impact and its ballistic limit curve are iobtained by numerical simulations with AUTODYN, and furthermore,the ballistic limit equation is also developed.

关 键 词：C—SiC复合材料 弹道极限方程 超高速碰撞 双层结构 

分 类 号：O347.1[理学—固体力学]