Periodic array of cracks in a strip subjected to surface heating
| Autor: | Abd El-Fattah A. Rizk |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Surface (mathematics)
Materials science business.industry Applied Mathematics Mechanical Engineering Crack tip opening displacement Structural engineering Mechanics Physics::Classical Physics Condensed Matter Physics Crack growth resistance curve Ramp function Integral equation Physics::Geophysics Condensed Matter::Materials Science Crack closure Mechanics of Materials Modeling and Simulation mental disorders General Materials Science Boundary value problem business Stress intensity factor |
| Zdroj: | International Journal of Solids and Structures. 41:4685-4696 |
| ISSN: | 0020-7683 |
| Popis: | The analysis of a periodic array of cracks in an infinite strip under surface heating is investigated. The thermal stresses are generated as a result of a ramp function change on the boundary. Due to surface heating, compressive transient thermal stresses occur close to the surface causing the crack surfaces to come into contact at a certain contact length. The problem is treated as a nonlinear contact crack problem with the smooth closure condition of the crack surfaces. The mixed boundary value problem is reduced to a hypersingular integral equation with the crack surface displacement as an unknown function and the crack contact length as an additional unknown variable. Numerical results for stress intensity factors and the crack contact length are obtained as a function of time, heating rate, crack length, and periodic crack spacing. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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