Mixed mode cracks in annular planes of cylindrical orthotropy subjected to inplane loading
| Autor: | A.R. Fotuhi, R.T. Faal, H. Goleij |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Michell solution business.industry Plane (geometry) Applied Mathematics Mechanical Engineering 02 engineering and technology Structural engineering Mechanics Physics::Classical Physics Condensed Matter Physics Orthotropic material 01 natural sciences Integral equation 010305 fluids & plasmas Stress field Condensed Matter::Materials Science 020303 mechanical engineering & transports 0203 mechanical engineering 0103 physical sciences General Materials Science Dislocation business Anisotropy Stress intensity factor |
| Zdroj: | Theoretical and Applied Fracture Mechanics. 93:1-18 |
| ISSN: | 0167-8442 |
| DOI: | 10.1016/j.tafmec.2017.06.011 |
| Popis: | This paper is concerned with the mixed mode crack problem in an orthotropic annular plane. First, the Michell solution is generalized for material of cylindrical anisotropy. Next by using this solution, fundamental solutions of climb and glide edge dislocations are provided for an annular orthotropic plane of cylindrical orthotropy. Then, an analytical solution to stress field of the intact annular plane under normal and shear tractions on its outer boundaries is presented in this article. The distributed dislocation technique is employed to analyze multiple arbitrary oriented interacting cracks in an annular orthotropic plane. The ensuing integral equations are solved numerically to obtain the dislocation density on the surfaces of the cracks. The stress intensity factors are evaluated by using these dislocation densities. The approach of this study is applied to example problems and shown to be accurate for cases where given in the literature. Finally, the effects of crack geometry and location, material anisotropy, and interaction of cracks on the resulting stress intensity factors at the crack tips are studied. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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