• français
    • English
    français
  • Login
Help
View Item 
  •   Home
  • Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3)
  • View Item
  • Home
  • Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Numerical Investigation of the Limit Strains in Sheet Forming Involving Bending

Communication avec acte
Author
BALAN, Tudor
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
ABED-MERAIM, Farid
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]

URI
http://hdl.handle.net/10985/10322
Date
2008

Abstract

In this work, the finite element method is used to simulate a typical FLD test over tools of different radii. Parameters like the mesh density, element type, numerical determination of the onset of strain localization, limit strain definition etc. have been investigated. Finally, the limit strain for plane strain tension has been determined as a function of the thickness vs. tool radius (t/R) ratio. These simulations confirm that increasing the curvature of the tool increases the value of the limit strains. They also reveal that, as soon as bending becomes important, the practical relevance of the limit strains diminishes - At least with their current definition. The need for new strain localization models is emphasized, together with some of the associated challenges.

Files in this item

Name:
LEM3_ICTP_2008_BALAN
Size:
427.1Kb
Format:
PDF
Description:
LEM3-Conference-ICTP-2008-Bala ...
View/Open

Collections

  • Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3)

Related items

Showing items related by title, author, creator and subject.

  • Modélisation Elasto-Viscoplastique du Comportement des Aciers 
    Communication avec acte
    PIPARD, Jean-Marc; ABED-MERAIM, Farid; BALAN, Tudor; BERVEILLER, Marcel; BOUAZIZ, Olivier; LEMOINE, Xavier (Association Française de Mécanique, 2007)
    Dans cet article, une modélisation des différentes phases (ferrite, perlite etc.…) d’un acier multiphasé est proposée moyennant une loi phénoménologique à base physique. La description unifiée du comportement viscoplastique ...
  • Application of a dislocation based model for Interstitial Free (IF) steels to Marciniak Stretch test simulations 
    Communication sans acte
    CARVALHO RESENDE, Tales; SAADAOUI, Ayoub; BALAN, Tudor; ABED-MERAIM, Farid; BOUVIER, Salima; SABLIN, Simon-Serge (2010)
    With a view to environmental, economic and safety concerns, car manufacturers need to design lighter and safer vehicles in ever-shorter development times. In recent years, High Strength Steels (HSS) like Interstitial Free ...
  • Investigation of advanced strain-path dependent material models for sheet metal forming simulations 
    Article dans une revue avec comité de lecture
    HADDAG, Badis; BALAN, Tudor; ABED-MERAIM, Farid (Elsevier, 2006)
    Sheet metal forming processes often involve complex loading sequences. To improve the prediction of some undesirable phenomena, such as springback, physical behavior models should be considered. This paper investigates ...
  • Prédictions de courbes limites de formage avec les critères de localisation de Marciniak-Kuczynski et de Hill 
    Communication avec acte
    ALTMEYER, Guillaume; ABED-MERAIM, Farid; BALAN, Tudor (2008)
    Lors des opérations de mise en forme de structures minces, des phénomènes d’instabilité peuvent se produire. En emboutissage, ces instabilités peuvent se manifester sous différentes formes comme par exemple la striction ...
  • Comparison of forming limit diagrams predicted with different localization criteria 
    Article dans une revue avec comité de lecture
    ALTMEYER, Guillaume; ABED-MERAIM, Farid; BALAN, Tudor (Wiley, 2008)
    Automotive industries are more and more subject to restrictive environmental constraints. Weight reduction of structures seems to be an interesting way to satisfy these requirements. This can be achieved either by using ...

Browse

All SAMCommunities & CollectionsAuthorsIssue DateCenter / InstitutionThis CollectionAuthorsIssue DateCenter / Institution

Newsletter

Latest newsletterPrevious newsletters

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales