Article ID Journal Published Year Pages File Type
1563634 Computational Materials Science 2009 5 Pages PDF
Abstract

The stress–strain response of TMCP (Thermo-Mechanical Control Process) steels during dynamic deformation is different toward that during static deformation due to strain rate- and temperature-dependences of mechanical behavior. To predict static or dynamic behavior of SM570-TMC under monotonic and cyclic loadings, it is necessary to investigate characteristics of static–dynamic mechanical behavior by experimental approaches and to develop a strain rate-dependent model which can describe the non-linearity and hysteresis of complicated stress–strain relationship in the static and dynamic conditions. Therefore, strain-rate dependence of mechanical behavior and hysteretic characteristic of SM570-TMC is investigated by performing the tensile and low-cycle fatigue experiments as a function of strain rate. And based on the experiments, the strain rate-dependent hysteresis model is proposed by the authors. A three-dimensional elastic–plastic finite element analysis is developed by using the formulated hysteresis model and verified by comparing between the structural analyses and the experiments.

Related Topics
Physical Sciences and Engineering Engineering Computational Mechanics
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