FE analysis of growing crack of fibre reinforced composites specimen with chevron notch under three point bending

Abstract eng:
In this paper is solved a 3D analysis of growing crack of the chevron notched three-point-bending specimen. On macroscale the specimen body is modeled as an elastic homogenous and transversally isotropic material whose elastic constants are obtained by a homogenization procedure. In ceramics reinforced by elastic fibers a crack bridging mainly cause the toughening. This mechanism increases in some extent behind the crack tip along the process zone wake and, as a consequence, the crack growth resistance rises as the crack propagates and leaves the wake. This problem is solved in program system ANSY S and MAP LE . ´

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