RESEARCH PAPER
Criterion for crack initiation from notch located at the interface of bi-material structure
1
Faculty of Mechanical Engineering Bialystok University of Technology ul. Wiejska 45C, Poland
Publication date: 2019-06-30
Eksploatacja i Niezawodność – Maintenance and Reliability 2019;21(2):301-310
KEYWORDS
ABSTRACT
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 required
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.
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| eISSN: | 2956-3860 |
| ISSN: | 1507-2711 |
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