Experimental and analytical study on a shape memory alloy damper

Krzystof Wilde; Yi Zheng; Paolo Gardoni; Yozo Fujino

doi:10.1117/12.310607

17 June 1998 Experimental and analytical study on a shape memory alloy damper

Krzystof Wilde, Yi Zheng, Paolo Gardoni, Yozo Fujino

Proceedings Volume 3325, Smart Structures and Materials 1998: Smart Systems for Bridges, Structures, and Highways; (1998) https://doi.org/10.1117/12.310607
Event: 5th Annual International Symposium on Smart Structures and Materials, 1998, San Diego, CA, United States

Abstract

The superelastic behavior of shape memory alloys (SMAs) provides a stress-strain relation which is characterized by large hysteresis, superelastic effect, large ductility and variation of the material properties at different level of strain. Those properties can be effectively used in a design of SMA dampers for vibration control of bridges. In this paper, a device utilizing bending of SMA bars is experimentally tested. The bars of NiTi are kept on their ends by two rigid elements, moment arms, that are connected to the actuator and reaction wall. The force from the actuator, applied on the moment arms, exerts a uniform bending moment on the NiTi bars. The responses of NiTi alloys with different heat treatment are experimentally studied under cycling loading with various amplitudes. The test results confirmed a large hysteretic response of NiTi damper and its variable response at different displacement level. The experimental results are verified by simple 3D numerical simulations by FEM.

Citation Download Citation

Krzystof Wilde, Yi Zheng, Paolo Gardoni, and Yozo Fujino "Experimental and analytical study on a shape memory alloy damper", Proc. SPIE 3325, Smart Structures and Materials 1998: Smart Systems for Bridges, Structures, and Highways, (17 June 1998); https://doi.org/10.1117/12.310607

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available