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Anisotropic plastic stress field near a singular point
Authors:Lin Bai-song
Institution:Central-South University of Technology, Changsha
Abstract:On condition that any perfectly plastic stress component near a singular point is nothing but the function of theta only, making use of equilibrium equations and Hill anisotropic yield condition, we derive the general analytical expressions of the anisotropic plastic stress field near a singular point in both the cases of anti-plane and in-plane strains. Applying these general analytical expressions to the concrete cracks and the plane-strain bodies with a singular point, the anisotropic plastic stress fields at the tips of Mode I, Mode II, Mode III and mixed mode I–II cracks, and the limit loads of anisotropic plastic plane-strain bodies with a singular point are obtained.
Keywords:finite differences  micropolar fluids  magnetohydrodynamics (MHD)  boundary layer  similarity transformations  stagnation flow  
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