Abstract
Simulation of the Griffith's Crack Using Own Method of Predicting the Crack Propagation
Highlights
The authors programmed several conditions for the direction of the fracture propagation: maximum principal stress criterion, Ottosen-Podgórski criterion, three criteria based on displacements around the crack tip, and the maximum circumferential tensile stress (MTS) criterion, which is based on stress intensity factors
This paper presents the results of fracture simulation using the user’s own implementation of the crack propagation criteria with user subroutines in the Abaqus FEA system
The fracture was simulated using the extended finite element method (X-FEM) developed by Moes et al [2], which is one of the popular methods of simulating a discrete crack in the Finite Element Method. This method consists of modifying the element shape function by adding an enrichment function (Heavyside function), which is responsible for dividing a finite element at any point without the need to modify the element mesh
Summary
This paper presents the results of fracture simulation using the user’s own implementation of the crack propagation criteria with user subroutines in the Abaqus FEA system. This method was described in the previous author’s work [1]. The fracture was simulated using the extended finite element method (X-FEM) developed by Moes et al [2], which is one of the popular methods of simulating a discrete crack in the Finite Element Method. This method consists of modifying the element shape function by adding an enrichment function (Heavyside function), which is responsible for dividing a finite element at any point without the need to modify the element mesh
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