Constitutive modelling of the thermo-plastic behaviour of soils
2005; Taylor & Francis; Volume: 9; Issue: 5-6 Linguagem: Inglês
10.1080/17747120.2005.9692774
ISSN1958-5810
AutoresLyesse Laloui, C. Cekerevac, Bertrand François,
Tópico(s)Geotechnical Engineering and Soil Mechanics
ResumoABSTRACT Research interest in the thermo-mechanical behaviour of soils is growing as a result of an increasing number of geomechanical problems involving thermal effects. This paper addresses various issues concerning the thermo-mechanical behaviour of soils. Starting from experimental evidence of non-linearity and hardening that heating causes in clayey soils, a general thermo-plastic formulation is then introduced for the derivation of the constitutive equations. After that, constitutive modelling is presented and treated in the context of elasto-plasticity. Numerical simulations support the theoretical aspects of the paper by showing performances of the constitutive model.
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