EFFECT OF BENDING ON FORMABILITY LIMITS

A. Martinez Lopez, Antonius H. van den Boogaard

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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Abstract

In order to fulfill new environmental regulations to reduce Greenhouse Gas Emissions (GHG), new grades of Advanced High-Strength Steel (AHSS) have been replacing conventional steels in vehicle’s body structures. These changes are intended to reduce the estimated total weight, and increase fuel efficiency of vehicles. Although, the implementation of these materials brought new challenges to predict the material response under sheet metal operations. One of the techniques widely used to characterize this behavior is the Forming Limit Curve (FLC), through the Nakazima or Marciniak test. These techniques seem to be not accurate enough, and underestimate the formability limits for AHSS materials in cases where stretching and bending are combined. For this reason, in this study Finite Element simulations were developed to investigate further the effect of the out of plane stress in the FLC determination. Also the investigation of the influence of different lubrication systems was accomplished.
Original languageEnglish
Title of host publicationXVI International Annual SOMIM Conference
EditorsJ. Cervantes de Gortari, V.B. Ramírez, S.M. Martínez
Place of PublicationMonterrey, Mexico
PublisherSociedad Mexicana de Ingenieros Mecánicos
Pages1-8
Number of pages8
ISBN (Print)978-607-95309-3-8
Publication statusPublished - 22 Sep 2010
EventXVI Congreso Internacional Anual de la SOMIM 2010 - Nuevo Leon, Mexico
Duration: 22 Sep 201024 Sep 2010

Publication series

Name
Volumeon cd-rom

Conference

ConferenceXVI Congreso Internacional Anual de la SOMIM 2010
Period22/09/1024/09/10
OtherSeptember 22-24, 2010

Keywords

  • IR-78480
  • METIS-272334

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