Discrete element analysis of the effect of pore size and pore distribution on the mechanical behavior of rock

The effect of porosity, pore size and pore distribution on rock deformational and strength characteristics is studied in this paper, using a bonded particle model. Several uniaxial compressive and tensile strength tests were conducted on the numerical specimens with different sizes. Different pore distributions and pore sizes were used. It is shown that in addition to porosity, the pore size can have drastic effects on the elastic modulus, crack...