The variation of the reflection coefficient of extensional guided waves in pipes from defects as a function of defect depth, axial extent, circumferential extent and frequency

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science

Volumn 216, Issue 11, 2002, Pages 1131-1144

  Cawley, P ^a   Lowe, M J S ^a   Simonetti, F ^a   Chevalier, C ^a   Roosenbrand, A G ^b  

^a IMPERIAL COLLEGE LONDON   (United Kingdom)

^b SHELL GLOBAL SOLUTIONS INTERNATIONAL B V   (United States)

Author keywords

Chemical plant; Guided waves; Low frequency ultrasound; Non destructive testing; Pipes

Indexed keywords

FINITE ELEMENT METHOD; FREQUENCIES; PIPE; REFLECTION; THICKNESS MEASUREMENT;

REFLECTION COEFFICIENTS;

GUIDED ELECTROMAGNETIC WAVE PROPAGATION;

DEFECT; NON-DESTRUCTIVE TESTING; PIPE; ULTRASONIC TECHNIQUE;

EID: 0036924739     PISSN: 09544062     EISSN: None     Source Type: Journal    
DOI: 10.1243/095440602761609498     Document Type: Article

References (21)

1. Silk, M. G. and Bainton, K. F. The propagation in metal tubing of ultrasonic wave modes equivalent to Lamb waves. Ultrasonics, 1979, 17, 11-19.
2. Böttger, W., Schneider, H. and Weingarten, W. Prototype EMAT system for tube inspection with guided ultrasonic waves. Nucl. Engng Des., 1987, 102, 356-376.
3. Rose, J. L., Ditri, J. J. Pilarski, A. Rajana, K. and Carr, F. T. A guided wave inspection technique for nuclear steam generator tubing. NDT & E Int., 1994, 27, 307-330.
4. Mohr, W. and Höller, P. On inspection of thin walled tubes for transverse and longitudinal flaws by guided ultrasonic waves. IEEE Trans. Sonics and Ultrasonics, 1976, SU-23, 369-374.
5. Alleyne, D. N. and Cawley, P. Long range propagation of Lamb waves in chemical plant pipework. Mater. Evaluation, 1997, 55, 504-508.
6. Alleyne, D. N. and Cawley, P. The excitation of Lamb waves in pipes using dry coupled piezoelectric transducers. J. NDE, 1996, 15, 11-20.
7. Alleyne, D. N. Cawley, P. Lank, A. M. and Mudge P. J. The Lamb wave inspection of chemical plant pipework. In Review of Progress in Quantitative NDE (Eds D. O. Thompson and D. E. Chimenti), Vol. 16, 1997, pp. 1269-1276 (Plenum Press, New York).
8. Lowe, M. J. S. Alleyne, D. N. and Cawley, P. The mode conversion of a guided wave by a part-circumferential notch in a pipe. Trans. ASME, J. Appl. Mechanics, 1998, 65, 649-656.
9. Alleyne, D. N. Pavlakovic, B. Lowe, M. J. S. and Cawley, P. Rapid long-range inspection of chemical plant pipework using guided waves. Insight, 2001, 43, 93-96, 101.
10. Mudge, P. J. Field application of the Teletest (R) long-range ultrasonic testing technique. Insight, 2001, 43, 74-77.
11. Sheard, M. and McNulty, A. Field experience of using long-range ultrasonic testing. Insight, 2001, 43, 79-83.
12. Wassink, C. H. P. Robers, M. A. de Raad, J. A. and Bouma, T. Condition monitoring of inaccessible piping. Insight, 2001, 43, 86.
13. Alleyne, D. N. Lowe, M. J. S. Cawley, P. The reflection of guided waves from circumferential notches in pipes. Trans. ASME, J. Appl. Mechanics, 1998, 65, 635-641.
14. Bai, H. Shah, A. H. Popplewell, N. and Datta, S. K. Scattering of guided waves by circumferential cracks in steel pipes. Trans. ASME, J. Appl. Mechanics, 2001, 68, 619-631.
15. Hitchings, D. FE 77 User Manual, 1995 (Imperial College, London).
16. Alleyne, D. N. and Cawley, P. The interaction of Lamb waves with defects. IEEE Trans. Ultrasonics. Ferroelectrics and Frequency Control, 1992, 39, 381-397.
17. Rose, J. L. Pelts, S. Cho, Y. Modeling for flaw sizing potential with guided waves. J. Nondestructive Evaluation, 2000, 19, 55-66.
18. Lowe, M. J. S. Characteristics of the reflection of Lamb waves from defects in plates and pipes. In Review of Progress in Quantitative NDE (Eds D. O. Thompson and D. E. Chimenti), Vol. 17, 1998, pp. 113-120 (Plenum Press, New York).
19. 0 from a rectangular notch in a plate. J. Acoust. Soc. Am., 2002, 111, 64-74.
20. 0 Lamb mode from a circular through-thickness hole in a plate: finite element, analytical and experimental studies. J. Acoust. Soc. Am., 2002 (in press).
21. 0 Lamb mode from 3D circular defects in plates. In Review of Progress in Quantitative NDE (Eds D. O. Thompson and D. E. Chimenti), Vol. 21, 2002, pp. 231-238 (American Institute of Physics).