• 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.

Effect of kinematic hardening on localized necking in substrate-supported metal layers

Type
Articles dans des revues avec comité de lecture
Author
BEN BETTAIEB, Mohamed
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
243747 Labex DAMAS
ABED-MERAIM, Farid
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
243747 Labex DAMAS

URI
http://hdl.handle.net/10985/11855
DOI
10.1016/j.ijmecsci.2016.12.002
Date
2017
Journal
Effect of kinematic hardening on localized necking in substrate-supported metal layers

Abstract

Prediction of necking limits in thin substrate-supported metal layers, which are typically used as functional components in electronic devices, represents nowadays an ambitious challenge. The specific purpose of the current work is, first, to numerically investigate the effect of kinematic hardening on localized necking in a freestanding metal layer. Second, the impact of adding a substrate layer on the ductility evolution of the resulting elastomer/metal bilayer will be analyzed. The materials in the metal and substrate layers are assumed to be isotropic, incompressible and strain-rate independent. The behavior of the metal layer is described by a rigid–plastic model with mixed (isotropic and kinematic) hardening. The isotropic hardening contribution is modeled by the Hollomon law, while kinematic hardening is modeled by the Armstrong–Frederick law. The substrate layer is made of elastomer material whose mechanical behavior is assumed to be hyperelastic and modeled by a neo-Hookean constitutive law. The Marciniak–Kuczynski imperfection analysis is used to predict plastic flow localization. Through various numerical simulations, the influence of kinematic hardening on localized necking as well as the impact of the addition of an elastomer layer are specifically emphasized. Comparisons with experimental results are also carried out to assess the relevance of incorporating kinematic hardening in the constitutive modeling of freestanding metal sheets.

Files in this item

Name:
LEM3_IJMS_2017_ABEDMERAIM.pdf
Size:
2.210Mb
Format:
PDF
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.

  • Influence of the Non-Schmid Effects on the Ductility Limit of Polycrystalline Sheet Metals 
    BEN BETTAIEB, Mohamed; ABED-MERAIM, Farid (MDPI, 2018)
    The yield criterion in rate-independent single crystal plasticity is most often defined by the classical Schmid law. However, various experimental studies have shown that the plastic flow of several single crystals (especially ...
  • Theoretical and numerical investigation of the impact of out-of-plane compressive stress on sheet metal formability 
    BEN BETTAIEB, Mohamed; ABED-MERAIM, Farid (ELSEVIER, 2017)
    In modern sheet metal forming processes, such as hydroforming and single point incremental forming, sheet metals are often subjected to out-of-plane compressive stresses in addition to traditional in-plane stresses. However, ...
  • Numerical investigation of the combined effects of curvature and normal stress on sheet metal formability 
    BEN BETTAIEB, Mohamed; ABED-MERAIM, Farid; LEMOINE, Xavier (Springer, 2017)
    A number of parts and components involved in the automotive industry are made of thin bent sheets, which are subjected to out-of-plane compressive stresses in addition to traditional in-plane stresses. Unfortunately, the ...
  • Computationally efficient predictions of crystal plasticity based forming limit diagrams using a spectral database 
    GUPTA, Akash; BEN BETTAIEB, Mohamed; ABED-MERAIM, Farid; KALIDINDI, Surya (Elsevier, 2018)
    The present investigation focuses on the development of a fast and robust numerical tool for the prediction of the forming limit diagrams (FLDs) for thin polycrystalline metal sheets using a Taylor-type (full constraints) ...
  • Combined effect of damage and plastic anisotropy on the ductility limit of thin metal sheets 
    MSOLLI, Sabeur; BEN BETTAIEB, Mohamed; ABED-MERAIM, Farid (Elsevier, 2016)
    It is well known that both damage and plastic anisotropy strongly affect the ductility limit of thin metal sheets. Due to the manufacturing processes, initial defects, such as inclusions and voids, are ...

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