Thermo-Mechanical Analysis of Elasto-Plastic Cyclic Torsion of a Tubular Element

Abstract

The paper treats a tubular element which presents a cantilever beam loaded by a torque moment on the free end. The value of torque is chosen so that the stresses range in the elasto-plastic domain. The rheological properties of the material follow the elastic-linear hardening model. The tubular element is subjected to a cyclic torsion of such frequency that heat is generated in the tubular element. The quantity of the generated heat depends on the amplitude of the torque, frequency of the load and mechanical properties of the tubular element material. The paper compares the results of the temperature change at characteristic points along the tubular element obtained via numerical analysis as well as experimentally.