... thermo-mechanical constitutive models. Existing approaches often address constant elevated temperatures but fail to capture multiple thermal cycles or the coupled effect of mechanical cycling under heating. This study presents a hypoplastic thermo-mechanical model enhanced with the extended intergranular...

..., especially representing the complex localisation behaviour within inelastic bulk, which is beyond the capability of all existing constitutive models. In particular, both brittle and ductile responses, as well as their transitions, can be depicted at the meso-scale. Validation against two sets of triaxial...

...Luc E. J. Simonin; Guy T. Houlsby; Byron W. Byrne Advanced finite-element analyses are increasingly being used in geotechnical design, and central to these analyses are reliable and accurate constitutive models to represent soil behaviour. These models need to address response across a wide range...

...Arianna Gea Pagano; Fabio Rollo; Vanessa Magnanimo; Alessandro Tarantino; Angelo Amorosi Constitutive models for anisotropic clays incorporate a tensor-valued quantity named the ‘fabric tensor’ to describe the direction-dependent mechanical response of the material. Although the term ‘fabric...

...Saeed Tourchi; Miguel A. Mánica; Antonio Gens; Jean Vaunat; Minh-Ngoc Vu; Gilles Armand The paper presents the enhancement of an existing constitutive model for argillaceous hard soils–weak rocks to incorporate non-isothermal conditions, to be used in coupled thermo-hydro-mechanical (THM...

... fall into the ranges of values that were reported in the literature. To validate the proposed approach, the constitutive model was incorporated into a multiphase numerical framework to simulate evolution of BEP in embankment soil and compared with reported experimental observations. The numerical...

... experimental results, both original and from the literature. Simulation results compare very well with those of tests performed on reconstituted, compacted and intact samples. © 2022 Emerald Publishing Limited 2022 clay mineralogy constitutive modelling fabric/structure of soils suction yield locus...

... of infrastructure, a new constitutive modelling framework is introduced. The rooted soil is treated as a composite material with separate constitutive relationships for soil and roots, and a comprehensive stress–strain relationship for the root constituent is presented. The model is compared to direct shear...

... masses. The proposed approach of observation-guided constitutive modelling addresses this issue by considering a creeping landslide as a series of macro elements, where monitoring of displacements and pore water pressures allows the derivation of suitable constitutive models and their parameters...