Numerical modelling strategies using implicit and explicit methods to simulate quasi-static and dynamic three-points bend fracture tests of a ductile steel

Three-point bend fracture tests have been conducted at different loading rates with a quadratic martensitic steel. The failure energy has found to increase rate. To get insights in this numerical investigation undertaken strategies using ABAQUS and IMPETUS softwares order address quasi-static dynamic conditions. Simulations were the software carry out comparative analysis of both implicit explicit approaches. In addition standard Finite Element Method (FEM) applied conditions, eXtended-Finite (X-FEM) was quasistatic approaches, explicit, crack initiation propagation governed by critical plastic strain threshold combined displacement-based damage evolution criterion. use an approach second elements for A node-splitting method energy-based criterion employed simulate propagation. Experimental data results compared, allowing determine ability these two accurately three-point tests.