0
RESEARCH PAPERS

Combination of Longitudinal and Transverse Ultrasonic Waves for In Situ Control of the Tightening of Bolts

[+] Author and Article Information
Salim Chaki1

Laboratoire de Caractérisation Non Destructive (LCND, EA 3153), Université de la Méditerranée, IUT, Avenue Gaston Berger, 13625 Aix-en-Provence Cedex, France; Centre Technique des Industries Mécanique (CETIM), 52 Avenue Félix-Louat, B.P. 80067, 60304 Senlis Cedex, France; and Ecole des Mines de Douai, Département Technologie des Polymères et Composite et Ingénierie Mécanique (TPC&IM), 941 Rue Charles Bourseul, B.P. 10838, 59508 Douai, Francesalim.chaki@free.fr

Gilles Corneloup, Ivan Lillamand

Laboratoire de Caractérisation Non Destructive (LCND, EA 3153), Université de la Méditerranée, IUT, Avenue Gaston Berger, 13625 Aix-en-Provence Cedex, France

Henri Walaszek

 Centre Technique des Industries Mécanique (CETIM), 52 Avenue Félix-Louat, B.P. 80067, 60304 Senlis Cedex, France

1

Corresponding author.

J. Pressure Vessel Technol 129(3), 383-390 (Jun 06, 2006) (8 pages) doi:10.1115/1.2748821 History: Received December 03, 2005; Revised June 06, 2006

The feasibility of an absolute ultrasonic measurement of the tightening force in bolts was investigated. For this purpose, we used both longitudinal and transverse ultrasonic waves (bi-wave method) to remove the time-of-flight measurement of waves in the unstressed state. To avoid the systematic calibration tests (generally carried out before tightening control), an experimental method has been applied. This method allows determination of the effective length under stress and the difference between longitudinal and transverse acoustoelastic coefficients of a tightened bolt. The results show that the proposed method can provide absolute measurement of the tightening force without either loosening the bolt or performing systematically calibration tests with an uncertainty estimated on the order of ±10% at 95% reliability.

FIGURES IN THIS ARTICLE
<>
Copyright © 2007 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Model of axially loaded bolt

Grahic Jump Location
Figure 2

Experimental setup

Grahic Jump Location
Figure 3

Time of flight measurement between the first and the second round-trip echoes

Grahic Jump Location
Figure 4

Zero crossing points t1 and t2

Grahic Jump Location
Figure 5

Received waveforms for bolt HM20: (a) longitudinal wave; and (b) transverse wave

Grahic Jump Location
Figure 6

Calibration curve of one bolt HM20: Li=215.58mm, Lg=144.50mm

Grahic Jump Location
Figure 7

Calibration curves of bolts HM12

Grahic Jump Location
Figure 8

Calibration curves of bolts HM20

Grahic Jump Location
Figure 9

Example of a mechanical assembly

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In