A Study on High Temperature and High Strain Rate Dynamic Constitutive Relation of Q345 Steel

Special Issues Editor (Nottingham Tent University, United Kingdom (Great Britain))

In order to accurately describe the dynamic mechanical behavior of Q345 steel at both room temperature and high temperature, we carried our the Gleeble test and Split Hopkinson Press Bar (SHPB) test of Q345 steel. We obtained the mechanical properties and stress-strain curves of the material under different conditions, and analyzed the influence of the temperature and the strain rate on the flow stress of the material. The constitutive model of Q345 steel at high temperature and high strain rate was established by using the least square method. The constitutive model of Q345 was used in the simulation model. The simulation result and experiment result both verified the correctness of the constitutive model of Q345 steel.

Journal: International Journal of Simulation: Systems, Science & Technology, IJSSST V17

Published: Jul 14, 2016

DOI: 10.5013/IJSSST.a.17.26.32