Evaluation of fracture in mortar subject to tension loading using phase field model and three point bending test

DEM simulation of mortar-bolt interface behaviour subjected to shearing

“…Wang et al [24] investigated the micromacro failure mechanisms of a bolted joint using the discrete element method (particle flow code 2D). The continuum-based numerical methods have the limitation of investigating micromechanical behaviour of a rock or a solid material, thus the micro-mechanisms underlying the failure process cannot be known [25]. On the contrary, discontinuum-based numerical methods allow an explicit investigation and observation of the micro-crack initiation and propagation, which are more suitable for capturing the micromechanical behaviour of a rock bolting system.…”