Paper Title:
Detectability of Bearing Failure of Composite Bolted Joints by Electric Resistance Change Method
  Abstract

Bolted joints are widely used for composite structures. As is well known, excessive bearing load gives rise to bearing failure at hole boundaries. Detecting bearing failure is important for assuring integrity of composite structures. Since conventional nondestructive inspection methods are expensive, cumbersome, time-consuming, and not suitable for health monitoring, a simple, low-cost inspection method for bearing failure must be developed. Authors have demonstrated the feasibility of detecting bearing failure by using an electric resistance change method. In this study, more detailed analyses were carried out to investigate the detectability in terms of the damage size and the distance between damage and electrodes. The results show that bearing failure of less than 10mm square causes the electric resistance change of a few hundred ppm and thus can be easily detected, and that the electrodes can be mounted more than 10 mm far from a bolt hole.

  Info
Periodical
Key Engineering Materials (Volumes 321-323)
Edited by
Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi
Pages
957-962
DOI
10.4028/www.scientific.net/KEM.321-323.957
Citation
Y. Shimamura, K. Oda, A. Todoroki, M. Ueda, "Detectability of Bearing Failure of Composite Bolted Joints by Electric Resistance Change Method", Key Engineering Materials, Vols. 321-323, pp. 957-962, 2006
Online since
October 2006
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Price
$32.00
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