Fractality of Simulated Fracture
The paper is focussed on numerical simulations of the fracture of a quasi-brittle specimen due to its impact onto a fixed rigid elastic plate. The failure of the specimen after the impact is modelled in two ways based on the physical discretization of continuum: via physical discrete elements and pseudo-particles. Advantages and drawbacks of both used methods are discussed. The size distribution of the fragments of the broken specimen resulting from physical discrete element model simulation follows a power law, which indicates the ability of the numerical model to identify the fractal nature of the fracture. The pseudo-particle model, on the other side, can successfully predict the kinematics of the fragments of the specimen under impact failure.
J. Dusza, R. Danzer, R. Morrell and G.D. Quinn
P. Frantík et al., "Fractality of Simulated Fracture", Key Engineering Materials, Vol. 409, pp. 154-160, 2009