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Mixed mode fracture analysis of adiabatic cracks in homogeneous and non-homogeneous materials in the framework of partition of unity and the path-independent interaction integral
Goli, E ; Sharif University of Technology
1036
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- Type of Document: Article
- DOI: 10.1016/j.engfracmech.2014.07.013
- Abstract:
- In this paper, the path independent interaction integral has been implemented in the framework of the extended finite element method for mixed mode adiabatic cracks under thermo-mechanical loadings particularly in orthotropic non-homogenous materials. The mesh insensitivity and increased accuracy due to the thermal and displacement asymptotic analytical solutions are discussed and the contour independency of the interaction integral is investigated in different examples. Finally, the problem of crack propagation in orthotropic FGM materials under the thermal loading is investigated to assess the accuracy and robustness of proposed approach
- Keywords:
- Adiabatic crack ; Extended finite element method (XFEM) ; Interaction integral ; Interaction integrals ; Mixed mode fracture analysis ; Non-homogeneous material ; Orthotropic ; Partition of unity ; Thermo-mechanical loading
- Source: Engineering Fracture Mechanics ; Vol. 131, issue , 2014 , Pp. 100-127 ; ISSN: 00137944
- URL: http://www.sciencedirect.com/science/article/pii/S0013794414002239