Potential of superelastic Cu-Al-Mn alloy bars for seismic applications

Y. Araki, T. Endo, T. Omori, Y. Sutou, Y. Koetaka, R. Kainuma, K. Ishida

Research output: Contribution to journalArticlepeer-review

75 Citations (Scopus)

Abstract

We present the results of the quasi-static cyclic tensile tests of Cu-Al-Mn shape memory alloy (SMA) bars of 4 and 8 mm diameters to examine their superelasticity and other mechanical properties closely related to seismic applications. The present Cu-Al-Mn SMA bars have achieved the recovery strains of over 8% and the fracture strains of over 17%. Low-cycle fatigue was observed in neither of the bars. The mechanical properties obtained from the test, along with the lower material cost and higher machinability than Ni-Ti SMAs, demonstrate the high potential of the present Cu-Al-Mn SMA bars to be used in seismic applications.

Original languageEnglish
Pages (from-to)107-115
Number of pages9
JournalEarthquake Engineering and Structural Dynamics
Volume40
Issue number1
DOIs
Publication statusPublished - 2011 Jan

Keywords

  • Cu-Al-Be
  • Cu-Al-Mn
  • Ni-Ti
  • Shape memory alloy (SMA)
  • Superelasticity

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Earth and Planetary Sciences (miscellaneous)

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