The measurement of A0 and S0 Lamb wave attenuation to determine the normal and shear stiffnesses of a compressively loaded interface

Journal of the Acoustical Society of America - Tập 113 Số 6 - Trang 3161-3170 - 2003
Bruce W. Drinkwater1, Michel Castaings2, Bernard Hosten2
1Department of Mechanical Engineering, University of Bristol, Bristol BS8 1TR, United Kingdom
2Laboratoire de Mécanique Physique, UMR CNRS 5469, 351 cours de la Libération, Université Bordeaux 1, 33400 Talence, France

Tóm tắt

Guided waves in an elastic plate surrounded by air propagate with very low attenuation. This paper describes the effect on this propagation of compressively loading an elastomer with high internal damping against one surface of the elastic plate. The propagation of both A0 and S0 Lamb modes is considered. The principal effect is shown to be increased attenuation of the guided waves. This attenuation is caused by leakage of energy from the plate into the elastomer, where it is dissipated due to high viscoelastic damping. It is shown that the increase in attenuation is strongly dependent on the compressive load applied across the solid–solid interface. This interface is represented as a spring layer in a continuum model of the system. Both normal and shear stiffnesses of the interface are quantified from the attenuation of A0 and S0 Lamb waves measured at each step of the compressive loading. The normal stiffness is also measured independently by normal incidence, bulk longitudinal wave ultrasound. The resulting predictions of wave propagation behavior, such as attenuation, obtained by the model are in excellent agreement with those measured experimentally.

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Tài liệu tham khảo

1996, The Excitation of Lamb Waves in Pipes Using Dry Coupled Piezoelectric Transducers, J. Nondestruct. Eval., 15, 11, 10.1007/BF00733822

1984, Ultrasonic Scattering from Imperfect Interfaces: a Quasi-Static Model, J. Nondestruct. Eval., 4, 177, 10.1007/BF00566223

2002, On the relationship between ultrasonic and micromechanical properties of contacting rough surfaces, J. Mech. Phys. Solids, 50, 1397, 10.1016/S0022-5096(01)00119-3

2001, Lamb and SH waves generated and detected by air-coupled ultrasonic transducers in composite material plates, NDT & E Int., 34, 249

2001, The Potential of Guided Waves for Monitoring Large Areas of Metallic Aircraft Fuselage Structure, J. Nondestruct. Eval., 20, 29, 10.1023/A:1010601829968

1996, A Study of the Interaction Between Ultrasound and a Partially Contacting Solid-Solid Interface, Proc. R. Soc. London, Ser. A, 452, 2613, 10.1098/rspa.1996.0139

1991, Wave propagation in piezoelectric layered media with some applications, J. Intell. Mater. Syst. Struct., 2, 542, 10.1177/1045389X9100200408

1971, An Ultrasonic Study of the Area of Contact Between Stationary and Sliding Surfaces, Proc. R. Soc. London, Ser. A, 323, 321, 10.1098/rspa.1971.0108

1991, Prediction of Contact Parameters Using Ultrasonic Method, Wear, 148, 181, 10.1016/0043-1648(91)90216-H

1997, Material Interface Inspection by Lamb Waves, Int. J. Solids Struct., 34, 3885, 10.1016/S0020-7683(96)00197-7

1998, Detection of Kissing Bonds by Lamb Waves, Ultrasonics, 35, 573, 10.1016/S0041-624X(97)00095-4

1998, Ultrasonic spectroscopy of imperfect interfaces between a layer and two solids, J. Acoust. Soc. Am., 103, 657, 10.1121/1.423235

1995, Matrix techniques for Modelling Ultrasonic Waves in Multilayered Media, IEEE Trans. Ultrason. Ferroelectr. Freq. Control, 42, 525, 10.1109/58.393096

1989, Analysis of Leaky Lamb Waves in Bonded Plates, Int. J. Eng. Sci., 27, 779, 10.1016/0020-7225(89)90045-1

1992, The Interaction of Ultrasound with Imperfect Interfaces: Experimental Studies of Model Structures, J. Nondestruct. Eval., 11, 109, 10.1007/BF00566403

1997, Direct experimental investigations of acoustic modes guided by a solid-solid interface using optical interferometry, J. Acoust. Soc. Am., 120, 1532

1991, Elastic Wave Propagation with Kinematic Discontinuity Along a Non-Ideal Interface Between Two Isotropic Elastic Half-Spaces, J. Nondestruct. Eval., 10, 39, 10.1007/BF00568099

1992, Ultrasonic Classification of Imperfect Interfaces, J. Nondestruct. Eval., 11, 127, 10.1007/BF00566404

1991, Analysis of boundary-conditions for elastic wave interaction with an interface between two solids, J. Acoust. Soc. Am., 89, 503, 10.1121/1.400374

1981, An Ultrasonic Interface-Wave Method for Predicting the Strength of Adhesive Bonds, J. Appl. Phys., 52, 2847, 10.1063/1.329016

1994, A Guided Wave Inspection Technique for Nuclear Steam Generator Tubing, NDT & E Int., 27, 307, 10.1016/0963-8695(94)90211-9

2002, Propagation of Guided Waves in Adhesive Bonded Components, NDT & E Int., 35, 317, 10.1016/S0963-8695(01)00056-1

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Journal of the Acoustical Society of America

Tập 113 Số 6

3161-3170

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