Abstract Summary
In the framework of hypoplasticity, the non isothermal behaviour has not gained much attention. Furthermore, neither thermally induced compression of clays nor thermal strain rate dependency is described by existing hypoplastic models. This work is devoted to the extension of the visco-hypoplastic model formulation to present a unified model for both thermal and viscous strains in clays. The model predictions are assessed through comparisons with existing laboratory experiments on two clays with measurements of both isothermal/mechanical creep and thermally induced creep strains. A thorough calibration scheme of the material parameters is shown and demonstrated based on laboratory
