Dynamic mechanical analysis of nitinol beams

Sridhar Krishnan, Sung Ho Yoon, Scott R White

Research output: Contribution to journalArticlepeer-review


The bending behavior of thin nitinol beams under dynamic loading conditions was experimentally characterized using a three-point bending fixture in a Dynamic Mechanical Analyzer (DMA). Differential Scanning Calorimetry (DSC) was also used to measure the transformation temperatures and assess the effects of annealing treatment on the material behavior. The alloy (54.4Ni/45.5Ti wt. %) was chosen so that the austenitic finish temperature was in the range of 50-100°C. Simple beam bending theory was used to calculate the dynamic moduli of the beam and the transformation temperatures were observed in the form of a hysteresis curve of storage modulus. Monotonic three-point bend loading tests were conducted for pure martensite and pure austenite to measure the critical stresses for martensitic (stress-induced) transformation.

Original languageEnglish (US)
Pages (from-to)13-16
Number of pages4
JournalAmerican Society of Mechanical Engineers, Aerospace Division (Publication) AD
StatePublished - 2000

ASJC Scopus subject areas

  • Mechanical Engineering
  • Space and Planetary Science


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