Comparison of high-strain rate behaviour of OFHC Copper using dynamic indentation and split Hopkinson pressure bar techniques

摘要

The material behaviour can vary with strain rate so it becomes necessary to understand the response of materials under dynamic loading that closely match the service conditions. The high-strain rate behaviour of OFHC copper has been evaluated using split Hopkinson pressure bar (SHPB) technique and dynamic indentation (DI) technique. A comparison of data obtained using these techniques indicated a good match. The effect of strain-rate and microstructure on behaviour of material and strain-rate sensitivity has been discussed.