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Chapter 5. Discrete Element Modeling of Soil-Machine Interactions

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Published in Advances in Soil Dynamics Volume 3 Chapter 5, pp. 399-433 ( Copyright 2009 American Society of Agricultural and Biological Engineers )  .(doi:10.13031/2013.26879)
Authors:   Itzhak Shmulevich, Dror Rubinstein, Zvika Asaf
Keywords:   Discrete Element Modeling, General Concept, The Equations of Motion, Numerical Schemes and Time Steps, Stress and Strain Tensors in Granular Material, Contact Models, Damped Elastic Models, Adhesion Contact Theories for Cohesive Materials, Model Parameters, Applications of Discrete Element Models for Soil-Machine Interaction Studies, Soil-Wheel/Track Interaction, Coupling between the Discrete Element and the Finite Element Methods, Future Considerations

Abstract [First paragraph]: Soil-machine interactions present a continuous challenge for researchers, developers, and manufacturers. Modeling field machines for earthmoving and farming operations is an important engineering task. However, modeling soil-machine interactions is a complex process due to the spatial variability of the soil media, the nonlinear behavior of soil, the contact phenomena and flow that occur at the interface zone between the soil and the tool, and the dynamic effects. In this chapter we present a novel approach--the Discrete Element Method (DEM)--to model soil-machine interactions.

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