Electrothermal stress in conductive body with collinear cracks
| Autor: | Ping Wang, X.Z. Bai, Z.G. Tian |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Materials science
Field (physics) Applied Mathematics Mechanical Engineering Strain energy density function Mechanics Condensed Matter Physics Thermal expansion Stress field Stress (mechanics) Condensed Matter::Materials Science Forensic engineering General Materials Science Electric current Electrical conductor Elastic modulus |
| Zdroj: | Theoretical and Applied Fracture Mechanics. 40:187-195 |
| ISSN: | 0167-8442 |
| DOI: | 10.1016/s0167-8442(03)00045-4 |
| Popis: | The temperature and stress field in a thin plate with collinear cracks interrupting an electric current field are determined. This is accomplished by using a complex function method that allows a direct means of finding the distribution of the electric current, the temperature and stress field. Temperature dependency for the heat-transfer coefficient, coefficient of linear expansion and the elastic modulus are considered. As an example, temperature distribution is calculated for an alloy (No. GH2132) plate with two collinear cracks under high temperature. Relationships between the stress, temperature, electric density and crack length are obtained. Crack trajectories emanating from existing crack are predicted by application of the strain energy density criterion which can also be used for finding the load carrying capacity of the cracked plate. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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