Structural damage assessment using chaotic dynamic interrogation


Journal Article

This work considers a new technique for damage detection in vibration-based structural health monitoring. The technique involves exciting a structure with a low-dimensional chaotic input, reconstructing the attractor, and analyzing certain properties of the attractor for the subtle changes which may occur due to damage. Recourse is made to the Kaplan-Yorke conjecture for motivating the technique. The technique is then demonstrated in the laboratory on a beam subject to boundary clamp damage controlled by means of a special elastic clamp. The measurements are made with a special fiber optic strain measurement system whose key performance features are described. Copyright © 2002 by ASME.

Full Text

Duke Authors

Cited Authors

  • Todd, M; Trickey, S; Seaver, M; Nichols, J; Virgin, L

Published Date

  • January 1, 2002

Published In

  • Asme International Mechanical Engineering Congress and Exposition, Proceedings

Start / End Page

  • 613 - 620

Digital Object Identifier (DOI)

  • 10.1115/IMECE2002-32026

Citation Source

  • Scopus