Characterisation of the Constitutive Behaviour of Aluminium Alloy 7475

This research fully studied the thermal-mechanical characteristics of aluminium alloy 7475 (AA7475) sheets under hot forming circumstances. The investigation included conducting a variety of isothermal uniaxial tensile experiments at various temperatures and strain rates using an isothermal mechanical simulator, i.e., Gleeble 3500. The Split Hopkinson Tensile Bar (SHTB), a high-velocity testing system, and the electronic universal testing machine were used to conduct dynamic tensile strength tests on AA7475. These tests were conducted to assess the dynamic mechanical behaviour of the alloy at different strain rates. These stress-strain curves were collected at various speeds. The findings signify that the strain rate and hardening impact of AA7475 contribute significantly to the overall impact.