A fracture analysis with parallelized NOSB Peridynamics

Peridynamics is a particle-based method to simulate fracture phenomena of continuum bodies. In the peridynamics, crack inside a body can be easily modeled by erasing bonds between particles, so that it does not require any special treatments to model fracture phenomena. We have developed a peridynamic formulation called the Non-Ordinary State-Based (NOSB) peridynamics since the NOSB formulation allows us to explicitly consider the constitutive law in the continuum mechanics unlike the Ordinary-State-Based (OSB) peridynamics. The peridynamic code has been parallelized based on a domain-decomposition scheme called the Orthogonal Recursive Bisection (ORB) method to simulate a model with a huge number of particles. In this paper, we show the result of a contact-impact analysis performed by the ORB-parallelized NOSB peridynamics as an simulation example.