On the Application of von Mises` Yield Criterion to a Class of Plane Strain Thermal Stress Problems

Authors : Ahmet N ERASLAN, Hakan ARGESO

Pages : 113-128

View : 18 | Download : 9

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :A computational model is developed to estimate thermal stresses in nonlinearly hardening elastic-plastic axisymmetric systems in cylindrical polar coordinates. The model is based on von Mises` yield criterion, total deformation theory and Swift`s hardening law. Various numerical examples including plane strain and generalized plane strain problems in cylinders and tubes are handled. Comparisons are made with existing analytical solutions employing Tresca`s yield criterion for elastic-ideally plastic and elastic-linearly hardening systems. Parametric analyses are carried out to investigate the effect of important model parameters on the stresses and deformations.
Keywords : Thermoelastoplasticity, Nonlinear strain hardening, von Mises` criterion, Residual stresses