NDT.net - October 1998, Vol.3 No.10

Table of Contents ECNDT '98

Session: Chemical, Petrochemical

CHIME- A New Ultrasonic Method for Rapid Screening of Pipe, Plate and Inaccessible Geometries

Fiona Ravenscroft, Roger Hill, Colin Duffill & David Buttle
AEA Technology plc, National NDT Centre, Culham, Abingdon, UK.

Corresponding Author Contact:
Wilbert Martens, AEA Sonomatic BV, Krombraak 15, 4906 CR, Oosterhout (Netherlands), Phone: +31 (0)162 42 55 88, Fax: +31 (0) 162 42 43 43, Wilbert.Martens@aea-technology.nl, http://www.aeat.co.uk

TABLE OF CONTENTS

Abstract

Introduction

Concept

The CHIME Technique

Theoretical Modelling

Defect Detection

Defect Characterisation

Discussion and Conclusions

Acknowledgements

References

  1. Bowles, S. J. and Scala, C. M. Ultrasonic Lamb Waves for NDT of Materials. Non-Destructive Testing - Australia. v33(6), pp164-168, 1996.
  2. Mudge, P. J., Lank, A. M. and Alleyne D. N. A Long Range Method of Detection of Corrosion under Insulation in Process Pipework. Paper presented at the 5th European Union Hydrocarbons Symposium, Edinburgh, 26-28 November 1996.
  3. Newton, K. and Saunderson, D. H. NDT Research for the Oil and Gas Industry. The British Journal of NDT. v34(3), pp 123-128, 1992.
  4. Duffill, C. and Silk, M. Large Area Creeping Wave NDT. Patent No WO 96/36874.
  5. Erhard, A. and Kröning, E. Generation, Propagation, and Utilisation of Ultrasonic Creeping Waves. Materialprüfung, v26(9), pp 323-326, 1984.
  6. Erhard, A., Wüstenberg, H., Schulz, E. and Eberhard M. Applications of Longitudinal Creeping Waves in Ultrasonic Non-Destructive Testing, and Practical Aspects of the Use of Creeping Wave Probes. Materialprüfung, v24(2), pp 43-48,1982.
  7. Smith, P. H. Practical Applications of Creeping Waves. The British Journal of NDT. v29(5) pp 318 - 321. 1987.
  8. Nagy, P. B., Blodgett, M. and Golis, M. Weep Hole Inspection by Circumferential Creeping Waves. NDT&E International v27(3), pp 131-142. 1994.
  9. Hsu, N.N. Dynamic Green's Functions of an Infinite Plate - A Computer Program. U.S. Department of Commerce, National Bureau of Standards. NBSIR 85-3234. 1985.
  10. Carter, P., Slesenger, T. Harwell Ultrasonic Flaw Detection and Sizing Equipment with Digital Recording. UKAEA Harwell R10368 1981.

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