High strength aluminum alloys have drawn much attention as the requirement for lightweight
vehicle design increases in the automotive industry. However, inferior formability due to …

The prediction of springback in sheet metal is vital to ensure economical metal forming. The
latest nonlinear recovery in finite element analysis is used to achieve accurate results, but …

Recent reports in the literature identified pre-yield stress-strain nonlinearity and hysteresis
(anelasticity) as occurring in metals at virtually all stresses. These observations raise …

Superalloy ultrathin sheet is widely utilized in thin-walled components of aero-engine
because of its excellent comprehensive performance. Nevertheless, it is hard to precisely …

To describe the nonlinear stress-strain response in the unloading-reloading process, a
model was proposed for the variation of the elastic modulus during the process. This model …

Unloading behavior is of crucial importance in metal forming, which particularly creates
challenges for springback analysis and control of shape and dimensional accuracies of the …

The stress–strain response of some materials, such as advanced high strength steels,
during unloading is nonlinear after the material has been loaded into the plastic deformation …

The pre-yield deformation behaviour (ie, at stresses below the yield stress) of two materials,
pure iron and a low-alloy steel, and its anelastic nature are analysed at room temperature …

Electrically-assisted (EA) forming is an effective method to improve forming quality of sheet
metal. In order to reveal the effects of current on material flow behavior under complex strain …

Uniaxial stress–strain curves are known to exhibit significant curvature and hysteresis even
in the nominally elastic regime, ie before the standard yield stress is attained. In order to …