A Model for Conjoint Shape Memory and Pseudo-Elastic Effects during Martensitic Transformation | Zendy

K. Boubaker | Zendy

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A Model for Conjoint Shape Memory and Pseudo-Elastic Effects during Martensitic Transformation

Author(s) -

K. Boubaker

Publication year - 2012

Publication title -

isrn metallurgy

Language(s) - English

Resource type - Journals

ISSN - 2090-8717

DOI - 10.5402/2012/612891

Subject(s) - shape memory alloy , sma* , materials science , constitutive equation , martensite , pseudoelasticity , deformation (meteorology) , diffusionless transformation , nonlinear system , uniaxial tension , modulus , tension (geology) , structural engineering , composite material , mechanics , ultimate tensile strength , mathematics , microstructure , engineering , physics , finite element method , combinatorics , quantum mechanics

Shape memory alloys (SMA) are metals which can restore their initial shape after having been subjected to a deformation. They exhibit in general both nonlinear shape memory and pseudoelastic effects. In this paper, shape memory alloy (SMA) and its constitutive model with an empirical kinetics equation are investigated. A new formulation to the martensite fraction-dependent Young modulus has been adopted and the plastic deformation was taken into account. To simulate the variations, a one-dimensional constitutive model was constructed based on the uniaxial tension features.

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