Enhanced health monitoring of fibrous composites with aligned carbon nanotube networks and electrical impedance tomography

T. Tallman; F. Semperlotti; K. W. Wang

doi:10.1117/12.914461

18 April 2012 Enhanced health monitoring of fibrous composites with aligned carbon nanotube networks and electrical impedance tomography

T. Tallman, F. Semperlotti, K. W. Wang

Author Affiliations +

Proceedings Volume 8348, Health Monitoring of Structural and Biological Systems 2012; 83480G (2012) https://doi.org/10.1117/12.914461
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2012, San Diego, California, United States

Abstract

The high strength to weight ratio of fibrous composites such as glass-fiber reinforced polymers (GFRP) makes them prominent structural materials. However, their laminar nature is susceptible to delamination failure the onset of which traditional structural health monitoring (SHM) techniques cannot reliably and accurately detect. Carbon nano-tubes (CNT) have been recently used to tailor the electrical conductivity of polymer based materials that otherwise behave as insulators. The occurrence of damage in the polymer matrix produces localized changes in conductivity which can be tracked using electrical impedance tomography (EIT). This paper explores combining advances in composite manufacturing with EIT to develop a SHM technique that exploits anisotropic conductance monitoring for enhanced delamination and matrix crack detection.

Citation Download Citation

T. Tallman, F. Semperlotti, and K. W. Wang "Enhanced health monitoring of fibrous composites with aligned carbon nanotube networks and electrical impedance tomography", Proc. SPIE 8348, Health Monitoring of Structural and Biological Systems 2012, 83480G (18 April 2012); https://doi.org/10.1117/12.914461

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