Application of SHPB Apparatus to the Measurement of High Temperature Dynamical Mechanical Behavior of Materials

Being simple in structure and easy to operate, SHPB apparatus is a common facility for measuring the dynamic mechanical behavior of materials. But for measurement of high temperature mechanical properties, attention should be paid to the temperature gradient existing in the input and output bars of the apparatus, which certainly has some efect on the measured waves. In this paper, based on the theory of one dimensional wave propagation and heat conduction, a data processing method for considering this unfavourable effect is suggested. By using the method, the dynamic mechanical properties of 30CrMnSiA at high temperature condition are measured more accurately.