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Isa Ahmadi

Ahmadi Isa, Khamedi R.
Analysis of Cyclic Elastic-Plastic Loading of Shaft Based On Kinematic Hardening Model
Abstract


In this paper, the elasto-plastic and cyclic torsion of a shaft is studied using a finite element method. The Prager kinematic hardening theory of plasticity with the Ramberg and Osgood stress-strain equation is used to evaluate the cyclic loading behavior of the shaft under the torsional loading. The material of shaft is assumed to follow the non-linear strain hardening property based on the Prager model. The finite  element  method with C1 continuity is developed and used for solution of the governing equations of the problem. The successive  substitution  iterative  method  is  used  to  calculate  the distribution of stresses and plastic strains in the shaft due to cyclic loads. The shear stress, effective stress, residual stress and elastic and plastic shear strain distribution are presented in the numerical results.

 

 

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