The modeling of crack propagation and coalescence in rocks under uniaxial compression using the novel conjugated bond-based peridynamics

In this paper, crack propagation and coalescence behaviors in rock specimens containing pre-existing open flaws under uniaxial compression are investigated using the novel conjugated bond-based peridynamics (BB-PD). The novel conjugated BB-PD is an extended BB-PD model, where interacting forces are not only related to normal stretch of bonds, but also related to rotation bond angles of a pair of conjugated bonds. Simple elastic-brittle bond...