Share Email Print
cover

Proceedings Paper

Passive and active tagging of reinforced composites for in-process and in-field nondestructive evaluation
Author(s): Victor Giurgiutiu; Zao Chen; Frederic Lalande; Craig A. Rogers; Robert Quattrone; Justin Berman
Format Member Price Non-Member Price
PDF $17.00 $21.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Conventional non-destructive evaluation (NDE) methods are not very effective in monitoring the material conditions of advanced composite and adhesive joints. A technology that has been proposed to enhance the inspectability of advanced composites is the particle tagging technique. Two theoretical models were recently proposed to characterize the dynamic behavior of ferromagnetic and magnetostrictive tagging particles. These theoretical models concerning the development of an active tagging technique with embedded ferromagnetic and magnetostrictive particles and magnetic excitation are now experimentally verified. The experimental results of the active particle tagging shows a variation in the dynamic response of the specimens when defects and/or damage are present. The sensory signature from a tagged polymer is extracted as a result of the interaction between the embedded particles and their host matrix. A study of various types of composites and tagging particles for passive and active tagging was performed. Experimental validation of concepts for tagging of structural materials for on-site inspection prior to installation have also been explored. The on-site particle tagging inspection has been verified on laboratory specimens obtained from industry and was shown to be very efficient.

Paper Details

Date Published: 1 May 1996
PDF: 12 pages
Proc. SPIE 2717, Smart Structures and Materials 1996: Smart Structures and Integrated Systems, (1 May 1996); doi: 10.1117/12.239040
Show Author Affiliations
Victor Giurgiutiu, Virginia Polytechnic Institute and State Univ. (United States)
Zao Chen, Virginia Polytechnic Institute and State Univ. (United States)
Frederic Lalande, Virginia Polytechnic Institute and State Univ. (United States)
Craig A. Rogers, Virginia Polytechnic Institute and State Univ. (United States)
Robert Quattrone, U.S. Army Corps of Engineers (United States)
Justin Berman, U.S. Army Corps of Engineers (United States)


Published in SPIE Proceedings Vol. 2717:
Smart Structures and Materials 1996: Smart Structures and Integrated Systems
Inderjit Chopra, Editor(s)

© SPIE. Terms of Use
Back to Top