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Investigation of Mesh Sensitivity Influence to Determine Crack Characteristic by Finite Element Methods

Azimi, M ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1007/s11668-016-0117-y
  3. Publisher: Springer New York LLC
  4. Abstract:
  5. In this research, an extended finite element model has been investigated. Investigation of opening and closure stress always has been one of the difficult parameters to analysis of results; therefore, the utilization of finite element methods would be a good and logical alternative for this purpose. In addition, linear elastic fracture criteria are used for validation of numerical results from the simulation. In this work, a detailed analysis of the influence of different parameters in the results of a specific specimen with a semi-elliptical tooling groove in terms of closure and opening stress is presented, and the impact of optimum element size in fracture characteristic in various load cycles has been discussed
  6. Keywords:
  7. Fracture mechanics ; Optimum element size ; Semi-elliptical groove ; Fracture ; Fracture mechanics ; Element sizes ; Extended finite element models ; Fracture characteristics ; LEFM ; Linear elastic fracture ; Numerical results ; Semi-elliptical groove ; XFEM ; Finite element method
  8. Source: Journal of Failure Analysis and Prevention ; Volume 16, Issue 3 , 2016 , Pages 506-512 ; 15477029 (ISSN)
  9. URL: https://link.springer.com/article/10.1007/s11668-016-0117-y