NUMERICAL MODELING OF CRACK PROPAGATION PARAMETERS BY THE SFEM METHOD FOR A TWO-DIMENSIONAL MODEL

Bentahar, Mohammed; Benzaama, Habib

Communication science et technologie
Volume 22, Numéro 1, Pages 18-24
2024-11-03

Numerical Modeling Of Crack Propagation Parameters By The Sfem Method For A Two-dimensional Model

Authors : Bentahar Mohammed . Benzaama Habib .

Abstract

Fracture mechanics is a field broad that allows studying the behavior of a structure with different defects. The presence of defects can be in the form of internal crack or superficial crack. Fracture mechanics analysis correlates loading parameters. The purpose of this work is to numerically model the straight and inclined initial crack by the angle (α) concerning an elastic material, the SFEM method was used to make the modelling, a FORTRAN program makes it possible to create a structured parametric mesh, which keeps the same number of nodes and elements during the different stages of crack propagation. Different crack propagations have been studied. In addition, several values of the angle (α) were used to orient the crack. In addition, the model used has four-node CPE4 elements. The stress state characterization parameters at the crack front (KI and KII) were evaluated by the structure length (X). The analytical approach was used to compare the different results obtained by the SFEM method.