Estudos para modelagem termomecânica de atuadores de ligas com memória de forma.

Abstract

This work has for purpose to study tools capable of modeling thermomechanically shape memory alloys actuators. Using the first and the second law of thermodynamic and the Clausius-Clapeyron equation it was determined, from uniaxial traction assays isobaric and isothermal, the transformation enthalpy variation of a Ni-Ti wire and ribbon. Comparing the results obtained from the Clausius- Clapeyron equation with those obtained from DSC assays an acceptable concordance of the method was verified.