Validation of a finite element model for fracture mechanics specimens

  • M. Cauwelier
  • J. Maelfait
  • M. Verstraete
  • S. Hertelé
  • K. Van Minnebruggen
  • W. De Waele


Single parameter formulations have shown to be insufficient to describe constraint effects infracture mechanics specimens. This has lead researchers to a two parameter approach like the J-Q theory.In order to investigate constraint effects, the authors have developed a generic finite element model. Priorto drawing conclusions this model must first be validated, which is the topic of this paper. This validationhas been done by comparing analytical expressions of the J-integral with those obtained from theperformed simulations. The compared geometries were center cracked tension (CCT) and double edgenotched tension (DENT) fracture mechanics specimens. The results showed good agreement with theanalytical expressions and, as such, the model can now be confidently applied to determine values of the Jintegral. This is a first step towards evaluating two parameter J-Q constraint.

How to Cite:

Cauwelier, M., Maelfait, J., Verstraete, M., Hertelé, S., Van Minnebruggen, K. & De Waele, W., (2012) “Validation of a finite element model for fracture mechanics specimens”, International Journal of Sustainable Construction and Design 3(1), 8-18. doi:

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Published on
05 Nov 2012
Peer Reviewed