Multiscale simulation and experimental measurements of the elastic response for constructional steel

Abstract

Abstract The elastic response of the medium carbon steel to the macroscopic stress is established for revealing the elastic properties at multiscale. Based on the multiscale correlation constitutive equations derived from this constitutive model, the effective elastic constants (EECs) of medium carbon steel are predicted. In addition, the diffraction elastic constants (DECs) of the constituents of the medium carbon steel are also evaluated. And then, the simple in-situ X-ray diffraction experiments was performed for the measurements of DECs and EECs of treated 35CrMo steel during the four-point bending. Compared with the different models and experiments, the results demonstrated that the developed constitutive model is in good agreement with the measured values of the EECs and DECs, and that the connection of the material properties may be revealed by the feasibility and credibility of the constitutive model for simulating the elastic response at multiscale.