Abstract The near-surface regions of rail wheels experience a complex thermo-mechanical loading, which varies along the location tread and causes severe changes to microstructure. Occasionally, brittle white etching layers (WEL) are formed, representing high risk wheel damage. Therefore, we studied depth-evolution surface-near microstructure different being ~ 200,000 km in service. microstructu...

This article documents a new implementation of a three dimensional constitutive model that describes evolution of elastic and transformation strains during thermo-mechanical shape memory alloy loading events assuming a symmetric, isotropic material response. In achieving this implementation, improvements were made to the original formulation of the constitutive model. These improvements allow f...

Generation and dissipation of temperature-induced pore water pressure can alter the mechanical behavior characteristics soil media. Experimental observations indicate that heating/cooling cycles fabric which may result in irrecoverable deformations. Previous studies suggest contribution thermo-osmotic (non-Darcian) flow clays have a significant role thermal pressurization diffusion. Hence, this...

The magnetorheological elastomers (MREs) are novel multifunctional materials which their viscoelastic properties can be varied instantly under an application of applied magnetic field. Due to field-dependent stiffness and damping properties, MREs have been widely used in the development design MRE-based adaptive vibration isolators absorbers also biomedical engineering. Moreover, due inherent m...

the mechanical strength of cumin seed and the effects of moisture content, seed size, speed and direction of loading on the force and energy required to fracture cumin seed were investigated. the results showed that moisture and loading direction were significant at the 1% level on the force and energy required to fracture cumin seed. the effects of seed size on force and loading speed on energ...

Abstract The planar-biaxial thermo-mechanical fatigue behavior of nickel-base superalloy Inconel 718 was studied for selected proportional loading conditions, in particular biaxial strain ratios 1.0, 0.6, and − 1.0. cyclic temperature with minimum maximum temperatures 400 °C 630 a duration 250 seconds either In-Phase or Out-of-Phase to the mechanical axes. Besides multiaxial tests, uniaxial tes...