Temperature significantly affects the mechanical properties of geomaterials, particularly creep behavior soft clayey soils. Thus, an appropriate constitutive model to describe time-dependent stress-strain soils at various temperatures is necessary. This study performed temperature-controlled oedometer tests on two soils: Hong Kong marine deposit (HKMD) and kaolinite clay (kaolin). The thermally...

In this article, we describe the mathematical formulation and numerical implementation of an effective parametrization viscous anisotropy orthorhombic materials produced by crystallographic preferred orientations (CPO or texture), which can be integrated into 3D geodynamic science codes. Here, approach is applied to characterize texture-induced olivine polycrystals, main constituent Earth's upp...

Abstract A mixed u–p edge-based smoothed particle finite element formulation is proposed for computational simulations of viscous flow. In order to improve the accuracy standard method, and face-based smoothing operations on displacement gradient are 2D 3D analyses, respectively. Consequently, spatial integration involving operator performed domains. The constitutive model based an elasto-visco...

We use the modified smoothed-particle hydrodynamics (MSPH) method to analyze shear strain localization in elasto-thermo-viscoplastic materials that exhibit strainand strain-rate hardening and thermal softening. A homogeneous solution of simple shearing deformations of the body is perturbed and the resulting initial-boundary-value problem analyzed by the MSPH method. It is found that the deforma...

A finite element analysis of the large deformation of three-dimensional polycrystals is presented using pixel-based finite elements as well as finite elements conforming with grain boundaries. The macroscopic response is obtained through volumeaveraging laws. A constitutive framework for elasto-viscoplastic response of single crystals is utilized along with a fully-implicit Lagrangian finite el...