Numerical determination of sheet metal forming limit based on a new combined model of M-K theory and shear localization criterion

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Abstract

A combined forming limit model of M-K theory and shear localization criterion is proposed in this paper to study the formability of 6016-T4 Aluminum alloy sheet, with the sheet material modeled by the Yld2000-2d yield function and two isotropic hardening models. The forming limit curve (FLC) of the material can be predicted well using the M-K model in the right region, and using the shear localization criterion in the left region. The critical plane strain of the material was computed using the M-K model and then used to determine the shear localization criterion. In fact, the combined model takes advantage of both of these theories. As a consequence, the results obtained from the proposed combined necking model seem to agree satisfactorily with those of the experiments.
Original languageEnglish
Title of host publicationMaterials Engineering and Automatic Control II
Pages821-825
Number of pages5
DOIs
Publication statusPublished - 19 Jul 2013
Event2nd International Conference on Materials Engineering and Automatic Control, ICMEAC 2013 - Shandong, China
Duration: 18 May 201319 May 2013

Publication series

NameApplied Mechanics and Materials
Volume330
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2nd International Conference on Materials Engineering and Automatic Control, ICMEAC 2013
CountryChina
CityShandong
Period18/05/1319/05/13

Keywords

  • 6016-T4 aluminum alloy
  • Forming limit diagram
  • Sheet metal forming

ASJC Scopus subject areas

  • Engineering(all)

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