Design and Operating Characteristics of a Split Hopkinson Pressure Bar Apparatus

摘要

A split Hopkinson bar apparatus capable of conducting compressive strain rate tests at rates ranging from 50 to 10 to the 4th power in./in./sec has been designed and assembled. In principle, the apparatus is similar to that first used by Kolsky in 1949. The design of the apparatus is presented in two parts: the stress-generating system, and the stree-determination system. Detailed drawings of major components of the stress-generating system are included. The technique used to analyze test results is presented. A listing of a computer code which incorporates this technique is also included. The code provides a rapid method for computing the one-dimensional response of the sample of interest. Results for 6061-T6 and 1100-0 aluminum, which are in good agreement with those obtained by other investigators, are given as a check case for the system designed. (Author)