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Numerical simulation of multiple crack growth in brittle materials with adaptive remeshing

Azadi, H ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1002/nme.3002
  3. Abstract:
  4. In this paper, an automated adaptive remeshing procedure is presented for simulation of arbitrary shape crack growth in multiple cracked bodies. The Zienkiewicz-Zhu error estimator is employed in conjunction with the modified superconvergent patch recovery (SPR) technique to obtain more accurate estimation of error. A stability analysis is performed to determine active cracks from a set of competitive cracks. Various crack growth criteria together with the respective crack trajectory prediction are compared. Several numerical examples are illustrated to demonstrate the efficiency, robustness and accuracy of computational algorithm in the simulation of multiple crack growth
  5. Keywords:
  6. Adaptive remeshing ; Crack propagation criteria ; Brittle materials ; Error control ; Mixed mode fracture ; Multiple crack ; Brittle fracture ; Brittleness ; Computational efficiency ; Crack propagation ; Growth (materials) ; Cracks
  7. Source: International Journal for Numerical Methods in Engineering ; Volume 85, Issue 8 , August , 2011 , Pages 1017-1048 ; 00295981 (ISSN)
  8. URL: http://onlinelibrary.wiley.com/doi/10.1002/nme.3002/abstract;jsessionid=F05241405F2B82B90B8351EFB1B28448.f03t01