Equivalent linear stiffness and damping of a shape memory alloy bar operating at isothermal and non-isothermal condition-Reference-Cited by-同舟云学术

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

Published:2018-06-07 Issue:13 Volume:29 Page:2709-2727
ISSN:1045-389X
Container-title:Journal of Intelligent Material Systems and Structures
language:en
Short-container-title:Journal of Intelligent Material Systems and Structures

Author:

Jose Sebin¹^ORCID,Chakraborty Goutam¹,Bhattacharyya Ranjan¹

Affiliation:

1. Systems, Dynamics and Control Laboratory, Mechanical Engineering Department, IIT Kharagpur, Kharagpur, India

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.

Publisher

SAGE Publications

Subject

Mechanical Engineering,General Materials Science

Link

http://journals.sagepub.com/doi/pdf/10.1177/1045389X18778361

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