真空平板玻璃支撑应力理论分析与实验研究  

Theoretical Analysis and Experimental Study on the Brace Stress of the Vacuum Glazing

作　　者：顾乡[1] 高建和[1] 张瑞宏[1] 孔德军[2] 张华[1] 

机构地区：[1]扬州大学机械工程学院,扬州225009 [2]江苏大学机械工程学院,镇江212013

出　　处：《玻璃与搪瓷》2006年第6期15-19,14,共6页Glass & Enamel

基　　金：江苏省"十五"科技攻关项目(No.BE2001414);江苏省研究生创新计划资助项目(No.XM05-32)

摘　　要：用弹性力学的结点法建立真空玻璃支撑应力-应变数学模型,求出真空玻璃的支撑应力-应变场,分析了其应力-应变分布规律,同时用电测方法进行试验验证。试验结果表明,真空玻璃最大应力发生在四角的第2个支撑处,最大应力弹性力学计算值11.057MPa,电测法的测试值11.765MPa,两者误差为6.02%。支柱横截面上的正应力为179MPa,纵向变形分别为0.2686μm(钢柱)和0.7414μm(玻璃柱)。控制支撑高度误差和玻璃的平整度,保证受力的均匀,可增加真空玻璃的强度,增加其可靠性,提高其使用寿命。The mathematical upon the crunode method of deduced, and the stress- model of brace stress- elastic mechanics. The strain in the vacuum glazing was established based brace stress - strain field of the vacuum glass was strain distribution was analyzed. Meanwhile the stress distribution was experimentally verified by electrically testing method. The results showed that the maximum stress in the vacuum glass located in the second brace of four square side, and the maximal stress value by elastomechanical calculation was 11. 057MPa, while the measured value by electrically testing method was 11. 765MPa, with an error by 6.02%. The positive stress in the cross section of the brace was 179MPa, the portrait strains of steel brace and glass brace were 0. 2686μm and 0. 7414 μm respectively. The brace height uniformity and the glass flatness should be controlled so as to guarantee force equality, which could improve strength, dependability and service life of the vacuum glass.

关 键 词：真空平板玻璃 支撑 应力场 使用寿命 

分 类 号：TQ171.727[化学工程—玻璃工业]