On some advanced Thermo-Mechanical models for saturated clays

Pengyun y Hong (1) , Jean-Michel Pereira (2) , Anh Minh A.M. Tang (2) , Yu-Jun Cui (2)

1 navier umr 8205 - Laboratoire Navier
2 cermes - Géotechnique

This paper aims to evaluate the performance of several recent constitutive models in simulating the thermo-mechanical behaviour of saturated clays. A classic thermo-mechanical test on natural Boom Clay, commonly used in constitutive modelling was first clarified. Different methods commonly used to measure volumetric strain in drained heating tests were then discussed. Models evaluation was performed in terms of thermodynamic and elasto-plastic requirements. The capability of the models to capture the observed behaviour was assessed on the basis of the experimental evidence. It was shown that all the models provide reasonable predictions of the thermo-mechanical behaviour of saturated clays. However, each constitutive model has its own limitations or unclear points from the theoretical point of view.

Mots clés: thermo-mechanical behaviour; saturated clay; constitutive model; theoretical analysis

Domaines: Sciences de l'ingénieur [physics]

Pengyun y Hong, Jean-Michel Pereira, Anh Minh A.M. Tang, Yu-Jun Cui. On some advanced Thermo-Mechanical models for saturated clays. International Journal for Numerical and Analytical Methods in Geomechanics, 2013, 37 (17), pp.2952-2971. ⟨10.1002/nag.2170⟩. ⟨hal-00926922⟩