Experiment and Analyses on 16 Mn Steel under Cyclic Loading Controlled by Strain

The uniaxial and multiaxial non-proportional cyclic experiments of 16Mn steel under strain-control were carried out using MTS809 machine and Teststar control system. Cyclic softening was observed for 16Mn steel under strain-control cyclic loading. The restraining effects of mean strain, strain amplitude, non-proportional loading path and their histories to subsequent cyclic softening were revealed, and some useful conclusions for establishing constitutive model of non-proportional cyclic were obtained.