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The effects of rolling resistance on the stress-strain and strain localization behavior of granular materials due to simple shear loading conditions.

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hdl:2117/189081

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Muftah, Abdalsalam M.
Gutierrez, Marte S.
Document typeConference report
Defense date2011
PublisherCIMNE
Rights accessOpen Access
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
The previous studies has conclusively shown that rolling resistance is a significant parameter influencing the stress-strain and strain localization response of granular materials when a failure state can be reached in biaxial test with small strain, (2-4%) of axial strain [1, 2]. However, in order to allow for larger deformations, numerical experiments are carried out for a simple shear test. In these simulations strain localization can be obtained for relatively high shear strain. The main objective of this paper is to present the results of a comprehensive study using DEM modeling of the effects of the variation in rolling resistance on the elasticity, shear strength, dilation and bifurcation response of granular materials subjected to simple shear loading. A comprehensive parametric study is performed whereby the magnitude of rolling resistance is varied within its full range of possible values in conjunction with variations in other model parameters, and more practically to interpret the macroscopic behavior of granular specimens subjected to different loading conditions from the viewpoint of micromechanics.
URIhttp://hdl.handle.net/2117/189081
ISBN978-84-89925-67-0
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  • International Conference on Particle-Based Methods (PARTICLES) - II International Conference on Particle-Based Methods: fundamentals and applications (PARTICLES 2011), Barcelona, 26-28 October, 2011 [89]
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