CRACK-TIP STRESS IN GELS

被引:67
作者
SCHERER, GW
机构
[1] Du Pont Co., Central Research and Development Department, Wilmington, DE 19880-0356
关键词
D O I
10.1016/S0022-3093(05)80402-8
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Calculations of drying stresses have previously been presented in terms of the total stress, which is the sum of the stresses in the liquid and solid phases. However, the criterion for fracture involves the stress on the solid phase. In this note, the stress on the network at the crack tip is given explicitly. It is shown that the stress at the tip of a flaw can be tensile, even though the solid network is in compression elsewhere.
引用
收藏
页码:210 / 216
页数:7
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