An efficient framework for rapid life assessment in industrial applications: Fatigue crack growth

Developments in remeshing‐free fatigue crack growth simulation including a new adaptive virtual crack closure technique

“…Nonetheless, high computational cost and sophisticated coding issues for three-dimensional (3D) simulations were two major challenges for these FCG algorithms. 6,44 A VCCT-based method might potentially offer simplicity of implementation as well as low computational costs. For this reason, several researchers investigated the direct application of the crack closure integral within the XFEM framework with crack-tip enrichments to compute the SERR from the LEFM singular stress field adjacent to the crack tip.…”

“…4 However, they are insufficient for analyzing most of the industrial cases due to the lack of approximate or closed-form solutions for SIF. 5,6 Numerical-based algorithms, alternatively, are progressing toward being applicable in a wide range of FCG problems. 6,7 Concentrating on the numerical-based FCG algorithms based on the finite element method (FEM), one can classify them into algorithms with or without remeshing.…”

“…5,6 Numerical-based algorithms, alternatively, are progressing toward being applicable in a wide range of FCG problems. 6,7 Concentrating on the numerical-based FCG algorithms based on the finite element method (FEM), one can classify them into algorithms with or without remeshing. The adaptive remeshing technique gives promising results for FCG simulation even for complex geometries and loadings.…”

“…[8][9][10][11] However, a major challenge is to develop a robust automated FCG algorithm using this method, considering that element connectivities as well as internal interactions in multi-material domains must be updated during each iteration. 12 Despite the recent efforts made for improving the remeshing feature in FEM-based crack growth algorithm, for example, in Ramalho et al, 13 or utilizing some approaches to accelerate computational FCG and life estimation through such algorithms, for example, the Bayesian hybrid modeling employed in Ananthasayanam et al, 6 researchers have been more intent upon expanding remeshing-free algorithms in recent decades. The extended finite element methods (XFEM) investigated in this paper opened up a new hatch toward this aim by presenting the enrichedelement concept.…”