CRITERION FOR CRACK INITIATION FROM NOTCH LOCATED AT THE INTERFACE OF BI-MATERIAL STRUCTURE

被引：13
作者：
Mieczkowski, Grzegorz [1 ]
机构：
[1] Bialystok Tech Univ, Fac Mech Engn, Ul Wiejska 45C, Bialystok, Poland
来源：
EKSPLOATACJA I NIEZAWODNOSC-MAINTENANCE AND RELIABILITY | 2019年 / 21卷 / 02期
关键词：
crack initiation; interface fracture; bi-materials; singular stress fields; stress intensity factors; STRESS INTENSITY FACTORS; BRITTLE-FRACTURE; SINGULARITIES; FIELDS;
D O I：
10.17531/ein.2019.2.15
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The fracture process of bi-material structure with the notch was analysed in this work For fracture prediction, a criterion based on the Theory of Critical Distances was used. Under analysis were elements made of aluminium alloy and polymer combination (with a various structural notch-tip angle), which then were subjected to the three-point bending test. Values of critical loads resulting from the used hypothesis were compared with values obtained from the experiment. Validation of the selected criterion requited defining a qualitative and quantitative description of singular stress fields present around the structural notch-tip area. Therefore, such solutions were obtained and methodology of their determining was discussed.
引用
收藏
页码：301 / 310
页数：10
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