A hypoplastic model for mechanical response of unsaturated soils
Identifieur interne : 001E57 ( Istex/Corpus ); précédent : 001E56; suivant : 001E58A hypoplastic model for mechanical response of unsaturated soils
Auteurs : David Mašín ; Nasser KhaliliSource :
- International Journal for Numerical and Analytical Methods in Geomechanics [ 0363-9061 ] ; 2008-10-25.
English descriptors
Abstract
A new constitutive model is developed for the mechanical behaviour of unsaturated soils based on the theory of hypoplasticity and the effective stress principle. The governing constitutive relations are presented and their application is demonstrated using several experimental data from the literature. Attention is given to the stiffening effect of suction on the mechanical response of unsaturated soils and the phenomenon of wetting‐induced collapse. All model parameters have direct physical interpretation, procedures for their quantification from test data are highlighted. Quantitative predictions of the model are presented for wetting, drying and constant suction tests. Copyright © 2008 John Wiley & Sons, Ltd.
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DOI: 10.1002/nag.714
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The governing constitutive relations are presented and their application is demonstrated using several experimental data from the literature. Attention is given to the stiffening effect of suction on the mechanical response of unsaturated soils and the phenomenon of wetting‐induced collapse. All model parameters have direct physical interpretation, procedures for their quantification from test data are highlighted. Quantitative predictions of the model are presented for wetting, drying and constant suction tests. Copyright © 2008 John Wiley & Sons, Ltd.</div></front></TEI><istex><corpusName>wiley</corpusName><author><json:item><name>David Mašín</name><affiliations><json:string>Institute of Hydrogeology, Engineering Geology and Applied Geophysics, Faculty of Science, Charles University, Albertov 6, 12843 Prague 2, Czech Republic</json:string></affiliations></json:item><json:item><name>Nasser Khalili</name><affiliations><json:string>School of Civil and Environmental Engineering, The University of New South Wales, Sydney, NSW 2052, Australia</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>unsaturated soils</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>hypoplasticity</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>effective stress</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>non‐linearity</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>collapse</value></json:item></subject><articleId><json:string>NAG714</json:string></articleId><language><json:string>eng</json:string></language><abstract>A new constitutive model is developed for the mechanical behaviour of unsaturated soils based on the theory of hypoplasticity and the effective stress principle. 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The governing constitutive relations are presented and their application is demonstrated using several experimental data from the literature. Attention is given to the stiffening effect of suction on the mechanical response of unsaturated soils and the phenomenon of wetting‐induced collapse. All model parameters have direct physical interpretation, procedures for their quantification from test data are highlighted. Quantitative predictions of the model are presented for wetting, drying and constant suction tests. 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