introduction: texture is one of the most important attribute in foods and is always issues for the manufacturing of fried products, because texture plays a crucial role in consumer acceptance and the perceived quality of foods. prediction of changes in texture during frying can be helpful in process control. structurally, this quality parameter in fried potato strip made from the formation of a...

Abstract This paper takes the 35mm armor-piercing projectile as research object, and uses ANSYS LS-DYNA dynamic analysis platform to simulate process of penetrating armored steel plate under different rotation speeds by using Johnson-Cook constitutive model. The results show that speed has a certain influence on penetration performance projectile: will have effects contact stress target in late...

Johnson–Cook (J-C) material model is often used for Finite Element (FE) modeling of cutting processes and it affects significantly the results of simulation. Since experimentally determination of J-C equation parameters is an expensive and time-consuming task, in this paper, a new and efficient methodology was implemented based on the evolutionary optimization algorithm to identify new J-C mate...

Machining of metals is characterised by plastic deformation occurring at high strains, strain-rates and temperatures. In the few predictive machining theories reported in literature, two types of constitutive equations, the power-law relation and Johnson-Cook equation, have mainly been used for describing the material’s plastic behaviour. This paper aims at assessing the above constitutive equa...

We study thermomechanical deformations of a viscoplastic body deformed in simple shear. The strain gradients are taken as independent kinematic variables and the corresponding higher order stresses are included in the balance laws, and the equation for the yield surface. Three different functional relationships, the power law, and those proposed by Wright and Batra, and Johnson and Cook are use...

Severe plastic deformation in cutting operations such as milling might change mechanical properties (especially the strength and hardness) of machined surface its underlying layers. This phenomenon called work hardening reduces machinability. study presents an analytical solution to calculate upper layers workpiece process 2205 duplex stainless steel. In this regard, stresses regions are calcul...