FLD of AZ31 sheet under warm stretching and its prediction

Tetsuo Naka, Yasuhide Nakayama, Takeshi Uemori, Ryutaro Hino, Fusahito Yoshida, Masahide Kohzu, Kenji Higashi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Forming Limit Diagrams (FLDs) of a magnesium alloy (AZ31) sheet at various forming speeds (3 to 300 mm·mm-1) at several temperatures of 100-250°C were investigated by performing a punch stretch-forming test. The forming limit strains increased with temperature rise and with decreasing forming speed, where the effect of forming speed was stronger at higher temperatures. To describe such a characteristic of FLD of AZ31, the Marciniak-Kucznski type forming limit analysis was conducted using the Backofen-type constitutive equation (c = Cεnεm). In this analysis, the damage evolution in the necking zone was taken into account based on Oyane's ductile fracture criterion. The numerical results of the FLD show a good agreement with the corresponding experimental observations.

Original languageEnglish
Pages (from-to)6010-6015
Number of pages6
JournalInternational Journal of Modern Physics B
Volume22
Issue number31-32
Publication statusPublished - Dec 30 2008
Externally publishedYes

Fingerprint

diagrams
predictions
stretch forming
punches
constitutive equations
magnesium alloys
damage
temperature

Keywords

  • AZ31
  • Forming limit diagram
  • Warm stretching

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Statistical and Nonlinear Physics

Cite this

Naka, T., Nakayama, Y., Uemori, T., Hino, R., Yoshida, F., Kohzu, M., & Higashi, K. (2008). FLD of AZ31 sheet under warm stretching and its prediction. International Journal of Modern Physics B, 22(31-32), 6010-6015.

FLD of AZ31 sheet under warm stretching and its prediction. / Naka, Tetsuo; Nakayama, Yasuhide; Uemori, Takeshi; Hino, Ryutaro; Yoshida, Fusahito; Kohzu, Masahide; Higashi, Kenji.

In: International Journal of Modern Physics B, Vol. 22, No. 31-32, 30.12.2008, p. 6010-6015.

Research output: Contribution to journalArticle

Naka, T, Nakayama, Y, Uemori, T, Hino, R, Yoshida, F, Kohzu, M & Higashi, K 2008, 'FLD of AZ31 sheet under warm stretching and its prediction', International Journal of Modern Physics B, vol. 22, no. 31-32, pp. 6010-6015.
Naka T, Nakayama Y, Uemori T, Hino R, Yoshida F, Kohzu M et al. FLD of AZ31 sheet under warm stretching and its prediction. International Journal of Modern Physics B. 2008 Dec 30;22(31-32):6010-6015.
Naka, Tetsuo ; Nakayama, Yasuhide ; Uemori, Takeshi ; Hino, Ryutaro ; Yoshida, Fusahito ; Kohzu, Masahide ; Higashi, Kenji. / FLD of AZ31 sheet under warm stretching and its prediction. In: International Journal of Modern Physics B. 2008 ; Vol. 22, No. 31-32. pp. 6010-6015.
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