Prediction of pulse dispersion in tapered waveguides

NDT and E International

Volumn 43, Issue 3, 2010, Pages 265-271

  De Marchi, L ^a   Marzani, A ^a   Speciale, N ^a   Viola, E ^a  

^a UNIVERSITY OF BOLOGNA   (Italy)

Author keywords

Dispersive spectrum; Group delay; Guided waves; Tapered waveguides; Time frequency representation

Indexed keywords

FINITE ELEMENT SIMULATIONS; GROUP DELAYS; GUIDED WAVE; LAMB-TYPE WAVE; LONGITUDINAL WAVES; PULSE DISPERSION; SHORT TIME FOURIER TRANSFORMS; STEEL ROD; STRESS WAVE; TAPERED WAVEGUIDE; TEMPORAL BEHAVIOR; TIME TRANSIENT; TIME-FREQUENCY REPRESENTATIONS; TRIANGULAR PROFILES;

GUIDED ELECTROMAGNETIC WAVE PROPAGATION; ONLINE SEARCHING; WAVE PROPAGATION; WAVEGUIDES;

GROUP DELAY;

EID: 76349090202     PISSN: 09638695     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.ndteint.2009.12.004     Document Type: Article

References (20)

1. Wilcox P., Lowe M., and Cawley P. The effect of dispersion on long-range inspection using ultrasonic guided waves. NDT & E International 34 1 (2001) 1-9
2. Lowe M. Matrix techniques for modeling ultrasonic waves in multilayered media. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control 42 4 (1995) 525-542
3. Bartoli I., Marzani A., Lanza di Scalea F., and Viola E. Modeling wave propagation in damped waveguides of arbitrary cross-section. Journal of Sound and Vibration 295 (2006) 685-707
4. Marzani A., Viola E., Bartoli I., di Scalea L., and Rizzo P. A semi-analytical finite element formulation for modeling stress wave propagation in axisymmetric damped waveguides. Journal of Sound and Vibration 318 3 (2008) 488-505
5. Thompson D.J. Experimental analysis of wave propagation in railway tracks. Journal of Sound and Vibration 203 5 (1997) 867-888
6. Sanderson R., and Smith S. The application of finite element modelling to guided ultrasonic waves in rails. Insight 44 6 (2002) 359-363
7. Chen F., and Wilcox P.D. The effect of load on guided wave propagation. Ultrasonics 47 (2007) 111-122
8. Cho Y. Estimation of ultrasonic guided wave mode conversion in a plate with thickness variation. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control 47 3 (2000) 591-603
9. Galanenko V.B. On coupled modes theory of two-dimensional wave motion in elastic waveguides with slowly varying parameters in curvilinear orthogonal coordinates. The Journal of the Acoustical Society of America 103 4 (1998) 1752-1762
10. El-Kettani M., Luppé F., and Guillet A. Guided waves in a plate with linearly varying thickness: experimental and numerical results. Ultrasonics 42 1-9 (2004) 807-812
11. Jenot F, Ouaftouh M, Ourak M, Duquennoy M, Poussot P. Finite element modeling of guided waves propagation in plates with variable thickness. In: Proceedings of the international congress on ultrasonics, vol. 2007, 2007. p. 1-4.
12. Marical P., El-Kettani M.E.-C., and Predoi M. Guided waves in elastic plates with gaussian section variation: experimental and numerical results. Ultrasonics 47 1-4 (2007) 1-9
13. Predoi M.V.M., Kettani M.E.C.E., Hamitouche Z., and Petre C.C. Guided waves in plates with linear variation of thickness. The Journal of the Acoustical Society of America 123 5 (2008) 3834
14. Moser F., Jacobs L., and Qu J. Modeling elastic wave propagation in waveguides with the finite element method. NDT&E International 32 (1999) 225-234
15. Bartoli I., Lanza di Scalea F., Fateh M., and Viola E. Modeling guided wave propagation with application to the long-range defect detection in railroad tracks. NDT&E International 38 (2005) 325-334
16. 〈www.straus7.com〉.
17. Marzani A. Time-transient response for ultrasonic guided waves propagating in damped cylinders. International Journal of Solids and Structures 45 25-26 (2008) 6347-6368
18. Prosser W., Seale M., and Smith B. Time-frequency analysis of the dispersion of Lamb modes. Journal of the Acoustical Society of America 105 (1999) 2669-2676
19. Niethammer M., Jacobs L., Qu J., and Jarrzynski J. Time-frequency representations of lamb waves. Journal of the Acoustical Society of America 109 5 (2001) 1841-1847 10.1121/1.1357813
20. Kotte O., Niethammer M., and Jacobs L.J. Lamb wave characterization by differential reassignment and nonlinear anisotropic diffusion. NDT&E International 39 (2006) 96-105