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RKPM approach to elastic-plastic fracture mechanics with notes on particles distribution and discontinuity criteria

Mashayekhi, M ; Sharif University of Technology | 2011

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  1. Type of Document: Article
  2. Publisher: 2011
  3. Abstract:
  4. A meshless method called reproducing kernel particle method (RKPM) is exploited to cope with elastic-plastic fracture mechanics (EPFM) problems. The idea of arithmetic progression is assumed to place particles within the refinement zone in the vicinity of the crack tip. A comparison between two conventional treatments, visibility and diffraction, to crack discontinuity is conducted. Also, a tracking to find the appropriate diffraction parameter is performed. To assess the suggestions made, two mode I numerical simulations, pure tension and pure bending tests, are executed. Results including J integral, crack mouth opening displacement (CMOD), and plastic zone size and shape are compared with finite element method (FEM). Copyright
  5. Keywords:
  6. Crack mouth opening displacement (CMOD) ; Reproducing kernel particle method (RKPM) ; Crack mouth opening displacement ; Elastic-plastic fracture mechanics (EPFM) ; J integral ; Meshless ; Plastic zone ; Progression ; Reproducing kernel particle method ; Bending tests ; Crack tips ; Cracks ; Diffraction ; Elastoplasticity ; Finite element method ; Fracture mechanics ; Visibility ; Fracture
  7. Source: CMES - Computer Modeling in Engineering and Sciences ; Volume 76, Issue 1 , 2011 , Pages 19-60 ; 15261492 (ISSN)