ABSTRACT
This paper presents the frame of the “THHMD” damage model, designed for unsaturated porous media and formulated in independent state variables. The damage variable is a second-order tensor. The behaviour law stems from both micromechanical and phenomenological concepts. A crack related intrinsic water permeability is introduced. The “THHMD” model has been programmed in Θ-Stock Finite Element code (Arson & Gatmiri 2008).
A parametric study has been performed to study damage in heated samples of unsaturated bentonite and granite. Various loads and damage parameters have been used. The results show good physical trends.
