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- Title
Thermal stress intensity factor of an edge interface crack under arbitrary material combination considering double singular stress fields before and after cracking.
- Authors
Oda, Kazuhiro; Shinmoto, Takayuki; Noda, Nao-Aki
- Abstract
This paper discusses the stress intensity factor (SIF) for an edge interfacial crack in a wide bimaterial plate under uniform temperature change. The results shows that the SIF is controlled by the singular stress field including a constant term appearing at the interface end of the bimaterial plate without the crack. Since the constant term peculiar to thermal loading is necessary to be considered, it is confirmed that the SIF is analyzed by superposing the SIF under tension and the SIF under uniform interface stress. Finally, the SIF under thermal stress is systematically calculated and tabulated for arbitrary material combination in the whole range of Dundurs parameters α and β. When α = 2β, the SIF is presented as a function of α (= 2β) by considering the logarithmic-type edge singularity, which is also peculiar to the thermal loading.
- Subjects
THERMAL stresses; STRESS corrosion cracking; TEMPERATURE
- Publication
Acta Mechanica, 2023, Vol 234, Issue 7, p3037
- ISSN
0001-5970
- Publication type
Article
- DOI
10.1007/s00707-023-03531-4