Modeling the superplastic behavior of Mg alloy sheets under tension using a continuum damage theory

H. S. Costa Mattos, G. Minak, F. Di Gioacchino, A. Soldà

Research output: Contribution to journalArticlepeer-review

Abstract

The present paper is concerned with the modeling of superplasticity phenomenon in tensile tests of Mg alloy sheets using a continuum damage theory. The goal is to propose a one-dimensional phenomenological model, as simple as possible, able to perform a physically realistic description of strain hardening, strain softening, strain rate sensitivity and damage (nucleation and growth of voids) observed in tensile tests performed at different strain rates. Examples concerning the modeling of tensile tests of AZ31 Mg alloy sheets at different strain rates are presented and analyzed. They show a very good agreement between experimental results and model prevision.

Original languageEnglish
Pages (from-to)1674-1679
Number of pages6
JournalMaterials and Design
Volume30
Issue number5
DOIs
Publication statusPublished - May 2009

Keywords

  • Continuum damage mechanics
  • Superplasticity
  • Tensile tests

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

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