Paper Title:
Effects of Strain Rate and Temperature on Yield Locus for AZ31 Magnesium Alloy Sheet
  Abstract

The yield locus of type AZ31 magnesium alloy sheet was obtained by performing biaxial tensile tests, using cruciform specimens, at temperatures of 100, 150, 200, 250 and 300 P o PC at strain rates of 10P -2 P, 10P -3 P and 10P -4 PsP -1 P. Based on the experimental results, the effects of strain-rate and temperature on the yield locus was discussed. The size of yield locus drastically decreased with increasing temperature and decreased with decreasing strain-rate. Neither von Mises’s criterion or Hill’s can well predict the shape of the yield locus of this sheet metal. Instead of these quadratic yield functions, the yield criterion of Logan-Hosford or Barlat is a better choice for the accurate description of biaxial stress-strain responses at high temperature.

  Info
Periodical
Key Engineering Materials (Volumes 340-341)
Edited by
N. Ohno and T. Uehara
Pages
119-124
DOI
10.4028/www.scientific.net/KEM.340-341.119
Citation
T. Naka, M. Hayakashi, Y. Nakayama, T. Uemori, M. Kohzu, K. Higashi, F. Yoshida, "Effects of Strain Rate and Temperature on Yield Locus for AZ31 Magnesium Alloy Sheet", Key Engineering Materials, Vols. 340-341, pp. 119-124, 2007
Online since
June 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Yasumi Ito, Akira Shimamoto
1246
Authors: Tetsuo Naka, Yasuhide Nakayama, Takeshi Uemori, Ryutaro Hino, Fusahito Yoshida
937
Authors: Andrea Ghiotti, Stefania Bruschi, Paolo F. Bariani
Abstract:The constant demand of increasing performances and safety in vehicle industry has led significant innovations in the materials used in sheet...
97
Authors: Yu Guo An, Henk Vegter, Louisa Carless
Abstract:Recently, many flexible constitutive equations have been proposed for sheet forming simulations. However, various mechanical tests are...
543