Dynamic deformation behavior of aluminium alloys and PMMA under high-strain rate compressive/tensile loading

초록

Mechanical properties of the materials used for tranportations and industrial machinery under high strain rate loading conditions such as seismicloading are required to provide appropriate safety assessment to those 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 condition. In this paper, dynamic deformation behaviors of aluminiun alloys(Al2024-T4, Al6061-T6 and Al7075-T6) under both high strain rate compressive and tensile loading and PMMA under high strain rate compressive loading are determined using the SHPB technique.