loading conditions and complex geometry have led the cylinder heads to become the most challenging parts of diesel engines. one of the most important durability problems in diesel engines is due to the cracks valves bridge area. the purpose of this study is a thermo-mechanical analysis of cylinder heads of diesel engines using a two-layer viscoplasticity model. in this article, mechanical prope...

Loading conditions and complex geometry have led the cylinder heads to become the most challenging parts of diesel engines. One of the most important durability problems in diesel engines is due to the cracks valves bridge area. The purpose of this study is a thermo-mechanical analysis of cylinder heads of diesel engines using a two-layer viscoplasticity model. In this article, mechanical prope...

Abstract This paper presents a numerical study on the effects of microwave irradiation mechanical properties hard rock. More specifically, weakening effect heating induced damage uniaxial compressive and tensile strength granite-like rock is numerically evaluated. Rock fracture modelled by means damage-viscoplasticity model with separate variables for failure types. We develop global solution s...

• The study examines the transport of species in streaming blood through a rigid artery presence multi-irregular stenosis. flow is modeled by Casson constitutive equation. A linear surface reaction considered at artery. Asymptotic expressions are developed for velocity and shear stress coefficients. Extensive visualization velocity, concentration, other characteristics included various stenotic...

Contemporary computing packages handle a wide variety of stress analysis types, but are yet to provide an optimal way to handle certain load cases and geometries. Blades in gas turbine systems, for instance, undergo repetitive thermal and mechanical load cycles of varied shape and phasing. Complexly-shaped airfoils create non-uniform stress paths that exacerbate the problem of FEA software atte...

Abstract This paper discusses continuum models for simulating earthquake sequences on faults governed by rate-and-state dependent friction. Through detailed numerical analysis of a conventional strike-slip fault, new observations regarding the use various are presented. We update recently proposed plasticity-based model using consistently linearized formulation, show its agreement with discrete...