Self-sensing and self-actuation response of carbon nanotube composites

Ho Young Lee; Yuri M. Shkel

doi:10.1117/12.716195

20 April 2007 Self-sensing and self-actuation response of carbon nanotube composites

Ho Young Lee, Yuri M. Shkel

Proceedings Volume 6526, Behavior and Mechanics of Multifunctional and Composite Materials 2007; 65261W (2007) https://doi.org/10.1117/12.716195
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2007, San Diego, California, United States

Abstract

Changing dielectric properties of an elastically deformed solid material is called dielectrostriction. This physical response enables a concept of self-sensing in dielectric materials such as polymers and polymeric composites. In addition, dielectrostriction response is governed by same material parameters as the electrostriction effect which is suitable for self-actuation applications. Designed planar capacitor sensor is employed for monitoring dielectrostriction effect without mechanical contact with a loaded specimen. Such sensor can also be arranged in a rosette to directly obtain the principal values of the stress/strain and the principal directions. This study investigates dielectrostriction and electrostriction effects in carbon nanotube (CNT) composites. Preliminary results show tenfold increase in dielectrostriction response of nanocomposites having 2 vol. % of randomly distributed CNTs. Current study targets CNT composites having microstructure modified using applied electric field for optimizing sensing and actuation performances.

Citation Download Citation

Ho Young Lee and Yuri M. Shkel "Self-sensing and self-actuation response of carbon nanotube composites", Proc. SPIE 6526, Behavior and Mechanics of Multifunctional and Composite Materials 2007, 65261W (20 April 2007); https://doi.org/10.1117/12.716195

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