Assessing dynamic compression of AA2024-T351 with split Hopkinson pressure bar simulation

Abstract

The dynamic compressive behaviour of aluminium alloy AA2024-T351, which is commonly used for maritime and offshore structures, is important to understand. This is generally done using Taylor impact tests, projectile tests and split Hopkinson pressure bars. It can also be done less expensively using a finite-element simulation of a split Hopkinson pressure bar under different conditions. This paper numerically investigates the effects of striker velocity, striker shape and specimen shape on the dynamic compressive behaviour of AA2024-T351 using a simulated split Hopkinson pressure bar. The material behaviour was found to be sensitive to strain rates, striker shapes and specimen shapes under various situations.