玻璃钢/复合材料 ›› 2009, Vol. 205 ›› Issue (6): 58-61.

• 产品 工艺 • 上一篇    下一篇

真空平板玻璃封边残余应力的研究

  

  1. (扬州大学机械工程学院,扬州225009)
  • 出版日期:2009-11-28 发布日期:2009-06-25
  • 作者简介:王明友 (1985-), 男,硕士,主要从事真空玻璃研究及开发。
  • 基金资助:

    江苏省自然科学基金(BK2009039);国家自然科学基金资助项目(50772095)

RESEARCH ON RESIDUAL STRESS OF SEAL EDGE IN VACUUM PLATE GLAZING

  • Online:2009-11-28 Published:2009-06-25

摘要:

以实验室制样的真空平板玻璃为基础,用电测法对真空平板玻璃封边结构进行了残余应力场研究,成功测试

出了封边残余应力场的分布。采用数值分析法对真空平板玻璃封边残余应力场进行了分析,采用有限元法分析已建

立的数学模型,得出了其应力分布规律,并得出理论计算与试验结果基本一致的结果。探讨封边料的线膨胀系数对

真空玻璃残余应力的影响,同时分析封边应力耦合对真空玻璃残余应力分布的影响,以残余应力作为评估真空玻璃

失效的基本参量,揭示残余应力强度与弹性模量之间的关系,创立一种基于残余应力的真空平板玻璃失效计算新方

法,为真空玻璃封边残余应力的许容值分析提供理论基础。

关键词: 真空平板玻璃, 风荷载, 有限元分析

Abstract:

Based on vacuum flat glass by a laboratory sample preparation, the residual stress field

of seal edge of vacuum flat glass was researched by the electric measuring, it successfully tested

the distribution of residual stress field of seal edge. Residual stress field of seal edge of vacuum

flat glass was analyzed by numerical analysis method. By this method, the law of the stress

distribution was obtained. The theoretical calculation results were basically consistent with the

experimental results. It was explored that the linear expansion coefficient of seal edge having an

influence on the residual stress of vacuum glass, and analyzed the stress coupling of seal edge

having an influence on the residual stress of vacuum glass too. Using the residual stress as the

basic parameters of assessing the failure of vacuum glass, to reveal the relationship between the

residual stress intensity and elasticity modulus, and create the new failure calculation method

based on the residual stress of vacuum flat glass. The contents of above mentioned study provided a

theoretical basis for the allowable analysis of the seal edge residual stress of vacuum glass.

Key words: vacuum, flat glass, wind loading, FEM

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