DEM Analysis of Energy Loss in Elastoplastic Impact between Particles

Abstract:

We applied the discrete element method (DEM) to analyze the normal impact properties of elastoplastic spherical particles. DEM simulation of impact between two identical elastoplastic spheres is carried out to validate the proposed model. The numerical results show well agreement with the FEM solution. Based on this model, the effects of impact parameters such as velocity, yield strength, elastic modulus, Poissons ratio, and mass density, on the loss factor in impact process, are then analyzed.

• Periodical: Advanced Materials Research (Volume 898)
• Pages: 253-256
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.898.253
• Online since: February 2014
• Authors: Liu Chao Qiu*
• Keywords: DEM, Elastoplastic Impact, Energy Dissipation, Numerical Analysis

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