Peng, C, Wu, W and Yu, HS (2015) Hypoplastic constitutive model in SPH. In: Computer Methods and Recent Advances in Geomechanics. Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014, 24-25 Sep 2014, Kyoto; Japan. Taylor & Francis Group , pp. 1863-1867. ISBN 978-1-138-00148-0
Abstract
The Smoothed Particle Hydrodynamics (SPH) is a pure Lagrangian method mainly used in Astrophysics and Computational Fluid Dynamics (CFD). Owing to features it poses, SPH is an attractive method for analyzing large deformation problems in Geotechnical Engineering if the physical process can be modeled correctly, which calls for appropriate constitutive models. In this paper, the feasibility of implementing hypoplastic model in SPH is investigated. A simple hypoplastic model is employed to simulate the non-linear stress-strain behaviour of geomaterials. Instead of using equation of state, in this study stresses are computed directly through hypoplastic constitutive equation, thus giving rise to decoupling of density and stress computation. Strain rate needed by the constitutive model is evaluated using SPH integral interpolation. The discretized governing equations are solved marching forward in time by Verlet integration. The problem of a column of sand subjected to gravity is simulated to check the capability of the proposed SPH application in geomechanics.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2015, Taylor & Francis. This is an author produced version of a paper published in Computer Methods and Recent Advances in Geomechanics. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 23 Jul 2018 09:46 |
Last Modified: | 23 Jul 2018 09:46 |
Status: | Published |
Publisher: | Taylor & Francis Group |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:126536 |