Use of data-driven phase space models in assessing the strength of a bolted connection in a composite beam

Journal Article (Review;Journal)

This work explores the role of empirical dynamical models in deducing the level of preload loss in a bolted connection. Specifically, we examine the functional relationship between data gleaned from locations on either side of the connection using nonlinear predictive models. This relationship, as quantified by a measure of prediction error, changes as a function of bolt loosening, thus allowing both the presence and magnitude of the axial load to be identified. The models are based on a phase space portrayal of the system dynamics and require only that the structure's response be low dimensional. The technique is demonstrated experimentally on a composite beam fastened to steel plates with four instrumented bolts. Results are compared to a similar approach using an auto-regressive (AR) modeling technique.

Full Text

Duke Authors

Cited Authors

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

Published Date

  • April 1, 2004

Published In

Volume / Issue

  • 13 / 2

Start / End Page

  • 241 - 250

International Standard Serial Number (ISSN)

  • 0964-1726

Digital Object Identifier (DOI)

  • 10.1088/0964-1726/13/2/001

Citation Source

  • Scopus