Header menu link for other important links
X
Numerical simulation of shape memory effect and superelasticity in SMA wires and beams
A. Seshu Kumar,
Published in
2002
Volume: 5062
   
Issue: 2
Pages: 936 - 943
Abstract
In this paper; first, a comprehensive understanding of temperature and stress induced phase transformation is presented and a thorough interpretation of martensitic phase transformation is presented. A numerical study of Brinson's model is then presented, in order to explain the capability of the model in reproducing the SMA characteristics under quasi-static thermomechanical loading. A MATLAB code was developed for the Numerical Simulation of Brinson's Constitutive Model. The stress strain curves obtained by the Brinson's model were used to simulate the behaviour of SMA wires and Beams under Quasi-static thermo-mechanical loading. Later in the end the applicability of Brinson's model for Hysteresis effects was studied by subjecting the beam model to two cycles of loading and unloading and then the Shape Memory Effect was studied. It was observed that the Brinson's Model needs some modifications for expressing Hysteresis Effects. However for one cycle of loading and unloading, the model well predicted the Super Elasticity and Shape Memory Effects.
About the journal
JournalProceedings of SPIE - The International Society for Optical Engineering
ISSN0277786X
Open AccessNo
Concepts (11)
  •  related image
    Computer simulation
  •  related image
    ELASTICITY
  •  related image
    Martensitic transformations
  •  related image
    Mathematical models
  •  related image
    Strain
  •  related image
    Stresses
  •  related image
    Temperature
  •  related image
    BRINSON CONSTITUTIVE MODEL
  •  related image
    QUASI-STATIC THERMOMECHANICAL LOADING
  •  related image
    Superelasticity
  •  related image
    Shape memory effect