The dynamic response of Q345 steel at high strain rates and high temperature

摘要

Mechanical properties of Q345 steel used for industrial structure under high strain rate and high temperature loading conditions such as rocket launching are required to provide appropriate safety assessment to these mechanical structures.The split Hopkinson pressure bar (SHPB) technique with a special experimental apparatus can be used to obtain the material behavior under high strain rate loading conditions.In this paper,dynamic deformation behaviors of Q345 steel under both high strain rate compressive and high temperature loading are determined using the SHPB technique.