摘要
针对加入玄武岩纤维织物对Whipple防护结构损伤产生的影响进行了实验研究.探讨了将玄武岩纤维织物作为航天器空间碎片超高速撞击损伤防护结构的增强材料用于航天领域的可行性.实验采用的基本构形为Whipple防护结构,玄武岩纤维布按不同方案布置在结构中.实验分析表明,玄武岩纤维布的防护作用在于:其发生击穿破坏时,击穿孔处的纤维束产生的断裂和孔边处纤维束产生的变形消耗和吸收了撞击物的撞击能量;破坏时,玄武岩纤维束中逐次断裂的纤维丝与撞击物的撞击除了对撞击物产生切割作用外还在撞击物中产生高频的间歇冲击波,两者都对撞击物产生碎化作用;玄武岩纤维布自身的破坏不会再产生新的大碎片.
In order to protect spacecraft against shield with high strength materials. Basalt fiber space debris impacts, it is a feasible direction to develop a is one of the high strength, lightweight, and flexibility materials. The aim of this study was to study the damage of lightweight Whipple shield composed of basalt-glass fibers woven and Al plat. High velocity impact tests were carried out by the non-powder two-stage light gas gun facilities at Hypervelocity Impact Research Center in Harbin Institute of Technology. All tests were performed with 0. 156 g in mass aluminum projectile at velocity ranging from 4 to 6 km/s. The configuration of Whipple shields consisted of a bumper, a basalt-glass fibers woven and a rear wall with 10 cm space between the bumper and the rear wall. The basalt-glass fibers woven was placed in front of or behind bumper closely, and betweens bumper and rear wall. The experimental results showed that the perforation hole in Al bumper has double lips, and some fibers near the perforation hole were covered by melted Al material when the woven was placed behind the bumper closely.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2007年第5期779-782,共4页
Journal of Harbin Institute of Technology
