Fractality of Simulated Fracture

Abstract:

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.

• Periodical: Key Engineering Materials (Volume 409)
• Pages: 154-160
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.409.154
• Online since: March 2009
• Authors: Petr Frantík, Zbyněk Keršner, Václav Veselý, Ladislav Řoutil
• Keywords: Dynamical Simulation, Fractal, Fracture, Fragmentation, Impact

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