中国空间科学技术

• • 上一篇    下一篇

钛内衬碳纤维缠绕氦气瓶的疲劳寿命和可靠度验证

张天平;杨福全;王小永;刘志栋;   

  1. 兰州物理研究所,兰州物理研究所,兰州物理研究所,兰州物理研究所 兰州730000,兰州730000,兰州730000,兰州730000
  • 发布日期:2007-02-25

Demonstration in Fatigue Life and Reliability of Carbon-Fiber Overwrapped Helium Tanks with Titanic Liner

Zhang TianpingYang FuquanWang XiaoyongLiu Zhidong(Lanzhou Institute of Physics,Lanzhou 730000)   

  • Online:2007-02-25

摘要: 结合卫星推进系统用复合材料高压氦气瓶产品研制,重点讨论了基于有限元应力应变分析基础上的金属内衬低周循环疲劳寿命和复合层应力断裂失效可靠性,产品鉴定试验结果说明了可靠性和疲劳寿命完全满足要求。

关键词: 可靠性, 疲劳寿命, 鉴定试验, 氦气瓶, 推进系统

Abstract: Failure models and fatigue life of composite pressure vessels with titanic lined and carbon fiber overwrapped were introduced breifly.Based on stress and strain data resulted from finite element analysis,the low cycle fatigue life and the reliability,which associated with stress rupture failure,of a real helium tank were presented in details.A qualification test demonstration of the helium tank's reliability applicable to the propulsion subsystem of satellites was identified as well.