This paper proposes a methodology that tackles these theoretical difficulties and simulates, using a discrete element model, any material defined by a Young’s modulus, Poisson’s ratio and density, to fit the static and dynamic mechanical behavior of the material. A second difficulty is that the volume between the discrete elements creates an artificial void inside the material. The aim of the present work is to improve the ability of DEM to simulate the continuous part of the material using cohesive bond model.Continuous mechanics laws cannot be used directly within a DEM formulation. In problems of wear or fracture, material is composed of continuous parts and discontinuous interfaces. The problem is that, while DEM is well adapted to simulate discontinuities, it is not suitable to simulate continuous behavior. In this case, the discrete element method (DEM) is a good alternative because it naturally takes into account discontinuities.Many researchers have shown interest in this approach for wear and fracture simulation. However, simulation of non-continuous phenomena like multi-fracturing is not well adapted to a continuous description. The mechanical behavior of materials is usually simulated by the continuous mechanics approach.
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