The strength and deformation properties of tailing materials are strongly affected by their hydromechanical history including the cycles desiccation re-saturation they undergo due to often layered deposition process. current study reviews fundamental characteristics some commonly used constitutive models for partially saturated soils, namely Barcelona Basic Model (BBM), Glasgow Coupled (GCM), a...

Non-coaxial response refers to the deviation between directions of principal stress and plastic strain increment. In this paper, an extended hypoplastic model is proposed based on anisotropic critical state theory, describe non-coaxial sand subjected both monotonic loading rotation axis. A fabric tensor that characterizes internal structure introduced into a model, reflect effect anisotropy dil...

In this study, synthetic sulfonated polymers were used in order to enhance the rheological properties of drilling fluids. The capability of these polymers in reducing the effects of environmentally friendly, but harmful, pollutants such as cement, calcium chloride, gypsum as well as pH changes were investigated. In the present work, two sulfonated synthetic polymers, namely Polythin and Polydri...

The combination of ductile Bombyx Mori silk fibre with thermoplastic matrices, combined the use a woven architecture, leads to composites quasi-isotropic strength. Bending and tensile properties were determined for (0,90)s twill weave composites, different polymers as reference epoxy resin. Thermoplastic are isotropic in strength (about 135 MPa at 50% volume fraction) due high elongation failur...