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 …

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 …

The necking of sheet metal is a main problem in forming processes that causes
unacceptable thickness decreasing and leads to stop the process. There is a large amount …

The paper presents a new approach to the Forming Limit Diagram (FLD) modeling. The
yield criterion (1993), recently proposed by Hill, is used for the calculation of the limit strains …

Forming limit diagrams (FLD's) are used to evaluate the workability of metal sheets. FLD's
provide the failure locus at which plastic instability occurs and localized necking develops …

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 …

In industrial try-out processes in sheet metal forming usually the forming limit curve is used
as failure criterion in order to describe the onset of localized necking. Forming limits …

Information upon the formability of thin metal sheets is important for both sheet
manufacturers and users. From the producer's point of view, the most significant is the …

A new method of predicting neck formation in sheets under non-proportional loading is
proposed, based on the concept of “cumulative forming severity”. This concept is borrowed …

Failure prediction in sheet metal forming is presently mainly based on experimentally
measured Forming Limit Curves. The latter characterize formability limits in a technical …