中国空间科学技术

中国空间科学技术

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航天器舷窗玻璃的强度检验方法和寿命预测

宋力昕,胡行方,吴国庭   

  1. 中国科学院上海硅酸盐研究所!上海200050,中国科学院上海硅酸盐研究所!上海200050,北京空间飞行器总体设计部!北京100086
  • 发布日期:1996-10-25

METHOD OF STRENGTH CHECK AND PREDICTION OF LIFE TIME FOR WINDOW GLASS OF SPACECRAFT

Song Lixin Hu Xingfang(Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050)Wu Gouting (Beijing Institute of Spacecraft Systems Engineering, Beijing 100086)   

  • Online:1996-10-25

被引次数

5

摘要： 以断裂力学为基础,结合热钢化玻璃应力分布的特点,首次提出了热钢化玻璃的检验试验和寿命预测方法,为热钢化舷窗玻璃的强度检验提供了理论基础。分析示例的计算表明,即使通过相同的检验应力,在不同的使用环境中允许的使用应力是不同的;不同环境下,同样的使用应力,玻璃的使用寿命相差很大。

关键词: 载人航天器, 舷窗, 玻璃, 应力分布, 强度试验, 寿命预测

Abstract: In this paper, the method of proof test and failure predication for thermal tempered glasses has been established for the first time, based upon fracture mechanics and the distribution of stress in thermal tempered glass, which provids the theoretical foundation for the strength check of the window glass of spacecraft. The results of calculation examples show that the permissible loads will different in different application environment, even if the glass has passed the same test stress in prooftest. The life time of glass under the same load also depands greatly on the environmental conditions.