Ordinary state-based peridynamics for nonlinear hardening plastic materials' deformation and its fracture process

In this paper, a modelling for ordinary state-based peridynamics to simulate plastic deformation is presented. This modelling can simulate nonlinear-hardening plastic mode, what's more, the perfect plastic model and linear-hardening plastic model can also be simulated in a simple way too. The expression of equivalent plastic stress in the formulation of nonlocal ordinary state-based peridynamics is established. The yield function is constructed...