Calibration of DEM simulation: Unconfined Compressive Test and Brazilian Tensile Test

Yucang Wang, Fernando Alonso-Marroquín, Masami Nakagawa, Stefan Luding
2009 AIP Conference Proceedings  
We simulate rock fracture using ESyS_Particle, the 3-D Discrete Element Model developed for modeling geological materials. Two types of simulations are carried out: Unconfined Compressive Test (UCT) and Brazilian Tensile Test (BTT). The results are compared to laboratory tests. Model parameters are determined on the basis of theoretical studies on the elastic properties of regular lattices and dimensionless analysis. The fracture patterns and realistic macroscopic strength are well reproduced.
more » ... e well reproduced. Also the ratio of the macroscopic strength of compression to the tensile strength is obtained numerically.
doi:10.1063/1.3179944 fatcat:2u45jzo37ncshgahveqohpixze