FEM-DEM simulation of Brazilian Tensile Strength (BTS) laboratory tests

A Brazilian Tensile Strength (BTS) laboratory test for meta-andesite was modeled using a Finite/Discrete Element Method (FDEM or FEM-DEM). These hybrid methodologies allow modeling the transition from continuous to discontinuous that happens on mechanical tests of rock samples. This article presents calibration and simulation BTS some parameters previously calibrated UCS same material. Irazu, two-dimensional software developed by Geomechanica, used simulate based tensile strength fracture pattern. The model shows that, in simulation, mode II (shear) mainly rock-platen contact. I (traction) rules fractures as observed tests. represents, with great fidelity, results obtained physical test.