... Abstract The objective of the study was to investigate the effect of strength heterogeneity on fracture patterns observed under laboratory conditions in hollow cylinder fracturing tests. The finite-element method with cohesive elements representing potential fracture sites was used. The number...

... Abstract The effect of meso-structure heterogeneity in material on the mechanical behavior of rock is studied in this paper, using Discrete Element Method and Weibull distribution model. Several triaxial compressive tests are conducted. Different meso-structure distributions are used...

... ABSTRACT A two dimensional finite element model is proposed to predict the effectivee thermal conductivity of rock sample. The heterogeneity of rock is taking into account in the numerical model at mesoscopic level by employ the statistical method. Finite element models simulated a steady...

..., grout condensate and some or no random micro cracks after grouting. The damage constitutional law of the mesoscopic element is established based on the theory of mesoscopic damage mechanics. With the heterogeneity of the components of rock mass considered, the variation of mechanical characteristics...