Modelling of cyclic mechanical behaviour of 316SPH steel by a non-linear relaxations approach

The modeling of cyclic mechanical behavior of 316SPH steel by a non-linear relaxation (NLR) approach was discussed. The material studied was a 316SPH austenitic steel with molybdenum and very low carbon under controlled nitrogen. The approach was based on the thermodynamics of irreversible processes. The tensile tests were carried out using an electromechanical machine at the temperature of 20°C. The monotonous tensile test and cyclic tests, for which the longitudinal strain was imposed in the form of a symmetrical triangular, were also conducted.