Application of Return Mapping Algorithm in Analysis of Nonlinear Kinematic Hardening Materials

This paper presents a return mapping algorithm for cyclic nonlinear kinematic hardening plastic constitutive model. The Armstrong - Frederick nonlinear kinematic hardening rule was used. A complete algorithm of the rate independent constitutive model for any desired strain or stress configuration was developed. The developed algorithm was applied for thick pressure vessel subjected to a cyclic internal pressure. The results were compared with results obtained by finite element method. This example demonstrated the accuracy of the method.

کلیدواژه ها:

Return mapping algorithm ، nonlinear kinematic hardening ، thick-pressure vessel