Journal of Theoretical
and Applied Mechanics
45, 2, pp. 225-237, Warsaw 2007
and Applied Mechanics
45, 2, pp. 225-237, Warsaw 2007
Influence of the crack tip model on results of the finite elements method
The paper contains recommendations of finite element models of the crack tip neighborhood to obtain results independent of the finite element mesh. The recommendations are valid for elastic-plastic problems and finite strains. As an example, analysis of single edge notched specimens under bending is presented.
Keywords: fracture mechanics; finite deformation; stress distribution; $J$-integral; CTOD; finite elements method