Mixed-mode K-calculations in anisotropic materials |
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Authors: | Guido Dhondt |
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Affiliation: | MTU Aero Engines GmbH, Postfach 50 06 40, D-80976 Munich, Germany |
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Abstract: | The crack tip stress singularities for anisotropic materials are derived using the finite difference method and they are compared to other derivations. Subsequently, these asymptotic fields are implemented into a local stress method, enabling the determination of the mixed-mode stress intensity factor distribution along an arbitrary crack in an anisotropic material. Comparison with the interaction integral method shows that the local method yields excellent results and exhibits a better robustness with respect to irregular meshes. |
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Keywords: | Stress intensity factor Anisotropy Mixed-mode |
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