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- Title
The effect of thermal stress on crack-inclusion problem in inhomogeneous superconducting cylinder.
- Authors
Zhao, Yufeng; Yang, Yifan
- Abstract
In this paper, the effect of thermal stress on crack-inclusion problem in inhomogeneous superconducting cylinder in the cooling process is investigated. By using the gradient finite element method, the thermodynamic coupling equation is solved numerically and the thermal stress is obtained during the drop from room temperature to operating temperature. Then the stress intensity factors for the cooling process are solved. The effects of thermal stress on crack growth are discussed, and the effects of the inclusion on crack growth under thermal stress are analyzed. According to the results, the crack length increases to promote the crack growth, then the effect of thermal stress on the crack growth increases as the crack length increases. In addition, the size and type of the inclusion, as well as the distance of the inclusion from the crack tip, can also affect the crack extension.
- Subjects
THERMAL stresses; THERMAL stress cracking; FRACTURE mechanics; FINITE element method
- Publication
European Physical Journal B: Condensed Matter, 2023, Vol 96, Issue 11, p1
- ISSN
1434-6028
- Publication type
Article
- DOI
10.1140/epjb/s10051-023-00619-7