This paper deals with a new method of strain measurement applied to the experimental
determination of the forming limit diagrams of thin steel sheets. This method uses the …

Two approaches are detailed for the determination of forming limit diagrams (FLD). The first
one is experimental: a correlation technique has been developed for the displacement field …

In this work an experimental method to determine the limit strain by means of digital image
correlation is proposed. This method analyzes the variation of the thickness of a sheet metal …

The forming limit diagram (FLD) is at the moment the most important method for the
prediction of failure within sheet metal forming operations. Key idea is the detection of the …

The use of finite element analysis in process design of sheet metal forming has become a
standard practice. Forming limit curves are used in finite element simulations of sheet metal …

The forming limit diagram (FLD) is a convenient tool for classification of sheet metals'
formability in the finite element analysis as well as in the press shop. The FLD indicates the …

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 …

During sheet metal forming, the useful shape change is limited by necking/splitting type
failures. The maximum surface strains that can be achieved before the onset of …

The forming limit diagram of sheet materials has been used as an effective quality
assurance tool in the stamping industry for almost forty years. Empirical relations have been …

Two approaches are detailed for the determination of forming limit diagrams (FLDs). The first
one is experimental: a correlation technique has been developed for the displacement field …