Elastoplasticity
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Recent papers in Elastoplasticity
This paper presents an adaptive incremental approach capable of handling elastoplastic contact problems with friction. Using the finite element method (FEM), the problem is formulated as an incremental convex programming model (ICPM)... more
A new elasto-plastic model for unsaturated soils incorporating the effect of evolving fabric anisotropy is presented. The model is formulated in terms of mean net stress, deviator stress and suction and reduces to the Barcelona Basic... more
This work extends existing multiphase-fluid SPH frameworks to cover solid phases, including deformable bodies and granular materials. In our extended multiphase SPH framework, the distribution and shapes of all phases, both fluids and... more
An automatic time increment selection scheme for numerical analysis of long-term response of geomaterials is presented. The scheme is simple, rational and stable. Governed by a simple empirical expression, it can adaptively adjust the... more
This paper presents a new method for selecting parameter values in elasto-plastic models for unsaturated soils under isotropic stress states. The proposed method is an improvement over more traditional calibration approaches as it... more
Suction anchors are subjected to inclined, quasi-horizontal or quasi-vertical loadings. The type of the structure and depth of water govern the inclination of the load. Under this load condition, suction anchor experiences a combination... more
Keywords:Thermoelasticity;stress analysis;infrared thermocamera;spectral analysisThermoelasticity;stress analysis;infrared thermocamera;spectral analysis
An exact analytical elasto-plastic solution for thick-walled cylinder made of functionally graded materials (FGMs) subjected to combined pressure and thermal loading is presented in this paper. It is assumed that the cylinder is bonded at... more
Seven teams took part in a benchmarking exercise on selection of parameter values for the Barcelona BasicModel (BBM) from experimental data on an unsaturated soil. All teams were provided with experimental results from tests performed on... more
The paper presents a soil water retention model that takes into account the effects of void ratio and hydraulic hysteresis on the variation of degree of saturation. Based on a modified form of van Genuchten equation, the model defines two... more
This paper presents the finite element (FE) analysis of the consolidation of the foundation of an embankment constructed over soft clay deposit which shows significant time dependent behaviour and was improved with prefabricated vertical... more
An exact analytical elasto-plastic solution for thick-walled cylinder made of functionally graded materials (FGMs) subjected to combined pressure and thermal loading is presented in this paper. It is assumed that the cylinder is bonded at... more
This work investigates the effect of initial and induced fabric anisotropy on the mechanical behaviour of unsaturated compacted kaolin by performing a programme of suction controlled laboratory tests. A triaxial compaction technique is... more
The paper presents a physically-based constitutive model for unsaturated soils that considers the bonding effect of water menisci at inter-particle contacts. A bonding factor has been used to represent the magnitude of the equivalent... more
This paper deals with the particular integral formulation for two (2D) and three (3D) dimensional elastoplastic analyses. The elastostatic equation is used for the complementary solution. The particular integrals for displacement, stress... more
The phenomenon of excess pore water pressure increase or stagnation and continuing large ground deformation in soft sensitive clay following the completion of construction of embankment is simulated for a case study at Saint Alban,... more