An Edge Dislocation in a Three-Phase Composite Cylinder Model With a Sliding Interface

• Autores: X. Wang, Y. Shen
• Localización: Journal of applied mechanics, ISSN 0021-8936, Vol. 69, Nº. 4, 2002 (Ejemplar dedicado a: Nanomechanics of Surfaces and Interfaces), págs. 527-538
• Idioma: inglés
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• Resumen

  • An exact elastic solution is derived in a decoupled manner for the interaction problem between an edge dislocation and a three-phase circular inclusion with circumferentially homogeneous sliding interface. In the three-phase composite cylinder model, the inner inclusion and the intermediate matrix phase form a circumferentially homogeneous sliding interface, while the matrix and the outer composite phase form a perfect interface. An edge dislocation acts at an arbitrary point in the intermediate matrix. This three-phase cylinder model can simultaneously take into account the damage taking place in the circumferential direction at the inclusion-matrix interface and the interaction effect between the inclusions. As an application, we then investigate a crack interacting with the slipping interface. ©2002 ASME