钠钙玻璃的双轴向弯曲强度

Determination of Biaxial Bending Strength for Soda-Lime Glass

本文研究了带有微小压痕裂纹的钠钙玻璃试件在惰性环境中的双轴向弯曲强度分布和加载应力速率对试件疲劳强度的影响。试件在蒸馏水中的断裂强度、断裂概率及加载应力速率三者之间的关系可以用一个两参数的Weibull函数进行描述。本文还将钠钙玻璃试件的双轴向弯曲强度和与其相应的单轴向弯曲(四点弯曲)强度进行了比较。

In this paper, the distribution of biaxial bending strength and the influence of loading rate on fatigue strength in the biaxial bending test by use of soda-lime glass specimen with micro indentation crack are studied. The test results show that the relation of fracture strength and cumulative fracture probability and loading rate for specimens in distilled water can be show by the two-index Weibull function. The biaxial and axial bending strength of soda-lime glass are also compared in this paper.