The forming limit is an important failure criterion for polycrystalline sheet metals when
approving the forming process. Recent developments in strain measurement technology, eg …

Digital image correlation (DIC) analysis methods can provide very accurate strain
measurement that is useful for identifying the onset of localized necking and thus …

Digital image correlation (DIC) techniques have been used in forming limit tests to obtain
forming limit strains and many different methods have been proposed to determine the onset …

Digital image correlation (DIC) technique has been proved as a potent tool to determine the
forming limit curve (FLC) of sheet metal. One of the major technical challenges using the DIC …

It is now possible using digital-image correlation techniques to precisely measure
deformation within a developing necking instability, during forming-limit experiments …

Theoretical prediction of forming limit strain of sheet metal is developed in the framework of
the three-dimensional general bifurcation theory. The onset of the three-dimensional …

Forming limit diagram (FLD) is a measure of the formability of a sheet material. The major-
minor strain pairs that are closest to the neck on multiple specimens of various strain paths …

The precise determination of the forming limit strains of a sheet metal is necessary in order
to accurately predict the onset of failure in sheet metal forming processes. The method used …

This paper presents an innovative 'strain acceleration method'for determining the onset of
diffuse necking in sheet forming tests using data obtained from digital image correlation …

Localized necking is one of the most frequently observed failure mechanisms in sheet
forming processes. The forming limit diagram (FLD) characterizes the sheet metal …