Equivalent linear stiffness and damping of a shape memory alloy bar operating at isothermal and non-isothermal condition

Equivalent linear stiffness and damping of a shape memory alloy bar operating at isothermal and... Complex stiffness of shape memory alloy bar is evaluated for isothermal and non-isothermal operating conditions. Analytical, numerical, and graphical approaches are used to evaluate complex stiffness. Real part of complex stiffness provides a measure of storage modulus, while imaginary part provides that of loss modulus. Complex stiffness is described as a function of forcing amplitude. Thermomechanical coupling changes the complex stiffness of the shape memory alloy bar at different operating conditions. It even becomes a function of forcing frequency during non-isothermal operation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Intelligent Material Systems and Structures SAGE

Equivalent linear stiffness and damping of a shape memory alloy bar operating at isothermal and non-isothermal condition

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Publisher
SAGE
Copyright
© The Author(s) 2018
ISSN
1045-389X
eISSN
1530-8138
D.O.I.
10.1177/1045389X18778361
Publisher site
See Article on Publisher Site

Abstract

Complex stiffness of shape memory alloy bar is evaluated for isothermal and non-isothermal operating conditions. Analytical, numerical, and graphical approaches are used to evaluate complex stiffness. Real part of complex stiffness provides a measure of storage modulus, while imaginary part provides that of loss modulus. Complex stiffness is described as a function of forcing amplitude. Thermomechanical coupling changes the complex stiffness of the shape memory alloy bar at different operating conditions. It even becomes a function of forcing frequency during non-isothermal operation.

Journal

Journal of Intelligent Material Systems and StructuresSAGE

Published: Aug 1, 2018

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