# A study of fragmentation processes using a discrete element method

@article{Kun1996ASO, title={A study of fragmentation processes using a discrete element method}, author={Ferenc Kun and Hans J. Herrmann}, journal={Computer Methods in Applied Mechanics and Engineering}, year={1996}, volume={138}, pages={3-18} }

Abstract We present a model of solids made from polygonal cells connected via beams. We calculate the macroscopic elastic moduli from the beam and cell parameters. This modellisation is particularly suited for the simulation of fragmentation processes. We study the effects of an explosion inside a circular disk and the impact of a projectile and obtain the fragment size distribution. We find that if breaking only happens under tensile forces a layer on the free wall opposed to impact is first…

## 148 Citations

Mechanisms in impact fragmentation

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The brittle fragmentation of spheres is studied numerically by a 3D Discrete Element Model. Large scale computer simulations are performed with models that consist of agglomerates of many spherical…

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We present a two-dimensional model of heterogeneous cohesive frictional solids where the material structure is idealized by a discrete granular particle assembly. Our discrete model is composed of…

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The results significantly improve the understanding of the fragmentation process for impact fracture since besides reproducing the experimental observations of fragment shapes, impact energy dependence, and mass distribution, the authors also have full access to the failure conditions and evolution.

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- Materials Science
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Abstract A direct method is proposed to rapidly fragment bodies during impulse-based discrete element method simulations of multiple body interactions. The approach makes use of patterns and size…

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Abstract We investigate the dynamic fracture of a single particle impacting a flat surface using 3D DEM simulations based on a fragmentation model involving both a stress threshold and a fracture…

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- Materials Science, MedicinePhysical review. E, Statistical, nonlinear, and soft matter physics
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The constitutive relation of the quasistatic deformation on two-dimensional packed samples of polygons is calculated using molecular dynamics simulations and shows that the stiffness tensor can be directly related to the microcontact rearrangements.

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- Materials ScienceCPM 2017
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We present a three-dimensional numerical method for the simulation of particle crushing in 3D. This model is capable of producing irregular angular fragments upon particle fragmentation while…

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