Finite element (FE) implementations of nearly incompressible material models often employ
decoupled numerical treatments of the dilatational and deviatoric parts of the deformation …

With the application of new forming techniques (hydroforming, incremental forming), it is
necessary to improve the characterization of the formability of materials and in particular the …

In the present work an elastic–plastic constitutive model including mixed isotropic-
distortional hardening is presented. The approach is very simple and requires only …

The purpose of this study is to develop a methodology for prediction of the forming limit
diagrams (FLD). The methodology is based on the Marciniak and Kuczynski theory. Two …

The influence of texture and grain structure on strain localisation and formability is examined
by experiments and numerical simulations for the extruded aluminium alloys AA6063 and …

The plastic behavior of anisotropic steel and aluminum sheets is identified by combining the
results of classical uniaxial tensile tests and heterogeneous biaxial tensile tests on non …

In this thesis a numerical model is developed to simulate the warm forming of Al¿ Mg sheet.
An important part of the numericalmodel is the modelling of the material behaviour. Both the …

This article addresses a theoretical analysis of the'modified maximum force criterion'(MMFC)
introduced by Hora et al (1996 A prediction method for ductile sheet metal failure in FE …

Forming limit is a key issue for metallic sheets. As a flexible and dieless manufacturing
technology, incremental sheet forming (ISF) process evidently improves the formability of …

In this research, we analyze forming-limit strains of FCC and BCC materials using a
viscoplastic self-consistent polycrystal model (VPSC) in conjunction with the Marciniak …