Journal ArticleDOI
A general forming limit criterion for sheet metal forming
TLDR
In this article, it is shown that the forming limit for both proportional loading and non-proportional loading can be explained from a single criterion which is based on the state of stress rather than the state-of-stress.About:
This article is published in International Journal of Mechanical Sciences.The article was published on 2000-01-01. It has received 397 citations till now. The article focuses on the topics: Stamping & Sheet metal.read more
Citations
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Journal ArticleDOI
A different approach for considering the effect of non-proportional loading path on the forming limit diagram of AA5083
TL;DR: In this paper, the effects of strain path change on the forming limit diagram (FLD) of AA5083 sheet were investigated, and the results showed that pre-straining in biaxial tension generally reduces the FLC and shifts it to the right-hand side of the FLD, whereas pre-strain in uniaaxial tension raises the FCL and shifts them to the lefthand side.
Journal ArticleDOI
Modeling of forming limit for multilayer sheets based on strain-rate potentials
Daeyong Kim,Hyunki Kim,Ji Hoon Kim,Myoung-Gyu Lee,Kee Joo Kim,Frédéric Barlat,Youngseon Lee,Kwansoo Chung +7 more
TL;DR: In this article, a method based on plastic stain-rate potentials, which are especially convenient to apply for rigid-viscoplasticity, was considered in order to evaluate the forming limits of planar anisotropic multilayer sheet materials.
Journal ArticleDOI
Necking limit of substrate-supported metal layers under biaxial in-plane loading
Zheng Jia,Teng Li +1 more
TL;DR: In this paper, the authors studied the necking limit of a metal/substrate bilayer over the full range of biaxial loading ratio, from 1 for equivalent loading, to 0 for plane strain load- ing, and to 1/2 for univalent loading.
Journal ArticleDOI
A multi-step analysis for determining admissible blank-holder forces in deep-drawing operations
TL;DR: In this article, a methodology to determine admissible blank-holder forces in deep-drawing operations was established, based on the comparison of the numerical principal strains fields, obtained in the numerical simulations, with the limiting strains determined analytically for both base materials.
Dissertation
Contribution à la modélisation de la mise en forme des tôles métalliques : application au retour élastique et à la localisation
TL;DR: In this article, a modelisation phenomenologique du comportement elasto-plastique is proposed, which is enriched by two different schemas d'integration, i.e., the modele d'endommagement of Lemaitre-Chaboche and the modelle microstructural of Teodosiu-Hu.
Related Papers (5)
Review of theoretical models of the strain-based FLD and their relevance to the stress-based FLD
Thomas B. Stoughton,Xinhai Zhu +1 more