This paper reviews the most recent models for description of the anisotropic plastic behavior
and formability of sheet metals. After a brief review of classic isotropic yield functions, recent …

Abstract Single-Point Incremental Forming (SPIF) is an emerging manufacturing process
especially suitable to produce small batches of metal parts. Moreover, the enhanced …

Abstract The standard ISO 12004-2: 2008 provides a position-dependent methodology to
estimate the limit strains in Nakazima-and Marciniak-type tests. However, this method is not …

The VDA238-100 standard for tight radius bending (v-bending) of sheet materials has
received widespread acceptance with automotive suppliers and material producers to …

Recent studies show the capability of single-point incremental forming to successfully
perform hole-flanging operations using multi-stage strategies. However, multi-stage …

A comprehensive experimental investigation was performed to characterize the fracture
behaviour of a rare-earth magnesium alloy sheet, ZEK100-O, under both proportional and …

Sheet formability is limited by the onset of localized necking or fracture, and the limit strain is
important to measuring sheet formability. The forming limit curve (FLC), which maps the limit …

Traditionally the fracture in sheet metal forming is characterized by the fracture forming limit
(FFL) curve typically obtained by using conventional Nakajima tests. This curve is implicitly …

The formability characteristics of advanced high strength (AHS) steel grades 780 and 1000
subjected to varying forming histories including strain path changes were described by …

A new experimental technique is proposed for measuring the strain to fracture for sheet
metal after proportional loading under plane strain conditions. The proposed technique …