Thermomechanical Constitutive Model for Saturated Clays Based on Critical State Theory
Publication: International Journal of Geomechanics
Volume 15, Issue 1
Abstract
A thermomechanical constitutive model for predicting the isothermal behavior of saturated clays in different temperatures is presented in this paper. This model is developed based on the general framework of critical state soil mechanics and modified Cam-clay formulation. Most of the characteristics of saturated clays in temperatures lower than water’s boiling temperature have been taken into account. An attempt has been made to use the lowest possible number of extra parameters compared with the original Cam-clay model and to ensure that these new parameters have clear physical interpretations. An important feature in the model is thermal dependency of the critical state line in the deviatoric stress plane. The predictions have been compared with five sets of laboratory data available in the literature.
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Published In
International Journal of Geomechanics
Volume 15 • Issue 1 • February 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Jul 25, 2013
Accepted: Mar 5, 2014
Published online: Apr 7, 2014
Published in print: Feb 1, 2015
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