AN EXPERIMENTAL STUDY ON FAILURE OF ALUMINUM GAS-FILLED PRESSURE VESSELS UNDER HIGH-VELOCITY IMPACT
In order to investigate failure mechanisms of thin-walled aluminum pressure vessels under hypervelocity impact of space debris, a non-powder two-stage light gas gun was used to launch Al-sphere projectiles impacting on unshielded and shielded vessels. Damage patterns and mechanisms leading to catastrophic rupture are discussed. Experimental results indicate that impact kinetic energy of projectile and gas pressure in vessel are important factors affecting the damage modes of vessel. On the one hand, high pressure gas can lead to vessel blast. On the other hand, high pressure gas can mitigate the impact of the debris cloud on the rear wall of the vessel. Catastrophic rupture of unshielded gas-filled vessels can be avoided when the impact energy is less than a certain limit value. When the bumper is perforated, damage of shielded pressure vessel might be fatal for vessels with high gas pressure.
Guan Gongshun Pang Baojun
Harbin Institute of Technology, Harbin, 150080, P. R. China
国际会议
第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)
北京
英文
2007-10-15（万方平台首次上网日期，不代表论文的发表时间）