Mechanical Behavior Characterization of Magnesium Alloy Sheets at Warm Temperature

J. Huang, Y. Yuan*, H. Liu, Jian Cao

*Corresponding author for this work

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Magnesium (Mg) alloy sheet has received increasing attention in automotive, transportation, and aerospace industries. It is widely recognized that magnesium sheet has a poor formability at room temperature. While at elevated temperature, its formability can be dramatically improved. To better understand the warm forming properties of magnesium alloy sheet, an accurate description of the mechanical behavior at elevated temperature is required. In this paper, both uniaxial tensile tests and uniaxial compression tests were carried out at warm temperature for Mg AZ31B alloy sheets. The tensile tests were conducted under various strain rates and material orientations, while the compression tests only considered different material orientations. Based on the orthotropic yield criterion for hexagonal close packed (HCP) metals proposed by Cazacu et al., 2006, a viscoplasticity model has been developed to describe the initial yield anisotropy and asymmetry hardening behavior in tensile and compression of Mg sheet. This model was incorporated into ABAQUS through a user-defined material subroutine. The numerical results show a good agreement with experimental data in a large range of deformation.

Original languageEnglish (US)
Pages (from-to)391-399
Number of pages9
JournalJournal of Mechanics
Volume32
Issue number4
DOIs
StatePublished - Aug 1 2016

Keywords

  • Magnesium alloy sheet
  • Strain rate
  • Tension/compression testing
  • Warm temperature

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Applied Mathematics

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