Strain hardening and anisotropic behavior of aluminum alloy 5182 subject to preform annealing

Abstract

Two essential elements of formability analysis are accurate strain-hardening laws and knowledge of material anisotropy, captured by the R-value parameter. Refinement of both of these areas will further enable the incorporation of lightweight materials, such as aluminum alloy 5182-O in automobiles, despite their traditionally lower formability than mild steel sheet. Therefore, improved modeling of strain-hardening with focus on high-strain deformation and R-value analysis is introduced in this research with experimental validation.