Finite Element Analysis of AA 6016-T4 Sheet Metal Forming Operations Using a New Polycrystalline Model

A major challenge in forming polycrystalline aluminum alloy sheets is their strong plastic anisotropy, namely the flow stresses and strains depend on loading direction. This anisotropy due to of constituent crystals preferred orientations that they assume material i.e. crystallographic texture. Recently, [1] we developed a single-crystal yield criterion involves correct number coefficients such as satisfy intrinsic symmetries condition yielding insensitivity hydrostatic pressure. defined for any stress state. It shown model uses this conjunction with appropriate homogenization procedures leads an improved prediction macroscopic properties under uniaxial tension shear loadings 6016-T4. Moreover, results FE simulations cup operations demonstrate predictive capabilities model.