Detection of fastener preload loss in a hybrid composite-to-metal bolted joint


Conference Paper

Copyright © 2003 by DEStech Publications, Inc. All right reserved. In this work we present two novel nonlinear time series analysis techniques-nonlinear cross prediction error and chaotic amplification of attractor distortion-for detecting preload loss in a hybrid metal-to-composite bolted joint. The two techniques involve imposing a chaotic steady-state on the structure and analyzing features from the resulting reconstructed attractors. The joint preload is controlled from a "fully tight" 10200 Ibf preload condition to complete failure (no preload), and numerous vibration tests are performed at discrete increments in that range. The two nonlinear techniques are compared to a linear autoregressive model fit for detection capability.

Duke Authors

Cited Authors

  • Nichols, JM; Moniz, L; Todd, MD; Trickey, ST; Seaver, M; Nichols, CJ; Virgin, LN

Published Date

  • January 1, 2003

Published In

  • Structural Health Monitoring 2003: From Diagnostics and Prognostics to Structural Health Management Proceedings of the 4th International Workshop on Structural Health Monitoring, Iwshm 2003

Start / End Page

  • 623 - 633

International Standard Book Number 10 (ISBN-10)

  • 1932078207

International Standard Book Number 13 (ISBN-13)

  • 9781932078206

Citation Source

  • Scopus