Ali Golchin

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Aingaran Sellaiya

University of Southampton

Iolanda Craifaleanu

Technical University Of Civil Engineering, Bucharest

Domenico Gallipoli

University of Genova

Ylona van Dinther

Swiss Federal Institute of Technology (ETH)

Dhundi Raj Pathak

Tribhuvan University

George Papathanassiou

Aristotle University of Thessaloniki

Liberty L.O Mgbanyi

University of Abuja

Francesca Casini

"Tor Vergata" University of Rome

Khalid Aljanabi

University of Anbar

Sayed M Ahmed

Ain Shams University

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Papers by Ali Golchin

A Critical State Sand Model with Elastic-Plastic Coupling

Springer Series in Geomechanics and Geoengineering, 2013

ABSTRACT Experimental studies have revealed that plastic strains change the elas-tic properties o... more ABSTRACT Experimental studies have revealed that plastic strains change the elas-tic properties of granular soils. This observation is an elastic-plastic coupling phenomenon which is considered here through the dependence of a free energy function to a proper hardening parameter. It is shown that implementation of the resulted hyperelastic model in a critical state bounding surface plasticity platform leads to more reasonable simulations.

On the influence of elastic–plastic coupling on sands response

Computers and Geotechnics, 2014

A sand constitutive model accounting for elastic-plastic coupling is presented. To this aim, gene... more A sand constitutive model accounting for elastic-plastic coupling is presented. To this aim, general constitutive equations describing an elastic-plastic coupling effect are developed first. Afterwards, a modified critical state plasticity model for granular soils is introduced accordingly. Several examples are presented to show the achieved improvements compared to the existing approaches. Comparing directly with experimental data, it is shown that the proposed model provides realistic simulations for pore pressure built-up under undrained cyclic loadings.

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A flexible and robust yield function for geomaterials

Computer Methods in Applied Mechanics and Engineering, 2021

The full-text may be used and/or reproduced, and given to third parties in any format or medium, ... more The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that: • a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.

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On the influence of elastic-plastic coupling on sands response

by Ali Lashkari and Ali Golchin

A Critical State Sand Model with Elastic-Plastic Coupling

by Ali Lashkari and Ali Golchin

Springer Series in Geomechanics and Geoengineering, 2013

Experimental studies have revealed that plastic strains change the elastic properties of granular... more Experimental studies have revealed that plastic strains change the elastic properties of granular soils. This observation is an elastic-plastic coupling phenomenon which is considered here through the dependence of a free energy function to a proper hardening parameter. It is shown that implementation of the resulted hyperelastic model in a critical state bounding surface plasticity platform leads to more reasonable simulations.