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A Microstructure-based Simulation Environment on the Basis of an Interface Enhanced Particle Model

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Abstract

The present contribution introduces enhanced discrete element simulation methodologies (DEM) with a special focus on a microstructure-based model environment. Therewith, it is possible to represent the failure of cohesive granular materials like concrete, ceramics or marl in a qualitative as well as quantitative manner. Starting from a basic polygonal two-dimensional particle model for non-cohesive granular materials, more complex models for cohesive materials are obtained by inclusion of beam or interface elements between corresponding particles. In particular, we will introduce an interface enhanced DEM methodology where a standard ingredient of computational mechanics, namely interface elements, are combined with the particle methodology contained in the DEM. The last step in the series of increasing complexity is the realization of a microstructure-based simulation environment which utilizes the interface enhanced DEM methodology. With growing model complexity a wide variety of failure features of cohesive as well as non-cohesive geomaterials can be represented. Finally, the plan of the paper is enriched by the validation of the newly introduced and re-developed discrete models with regard to qualitative and quantitative aspects.

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Authors and Affiliations

  1. Institute of Structural Mechanics, University of Stuttgart, Pfaffenwaldring 7, 70550, Stuttgart, Germany

    Gian Antonio D’Addetta & Ekkehard Ramm

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  1. Gian Antonio D’Addetta
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  2. Ekkehard Ramm
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Correspondence to Gian Antonio D’Addetta.

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D’Addetta, G.A., Ramm, E. A Microstructure-based Simulation Environment on the Basis of an Interface Enhanced Particle Model. Granular Matter 8, 159–174 (2006). https://doi.org/10.1007/s10035-006-0004-4

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