Numerical simulation of laser-generated Lamb waves in viscoelastic materials by finite element method

Journal of Applied Physics - Tập 106 Số 7 - 2009
Hong-xiang Sun1, Baiqiang Xu1, Rongzu Qian1
1Jiangsu University College of Science, , Zhenjiang 212013, People’s Republic of China

Tóm tắt

The effect of material viscoelasticity on the propagation of Lamb wave in a viscoelastic thin plate has been investigated quantitatively. Based on the plane strain theory, a numerical model of the laser-generated Lamb wave is developed in the frequency domain by using the finite element (FE) method. To verify the correctness of the FE model in the frequency domain, a classical FE model in the time domain is established for an elastic plate. The transient waveforms calculated in the frequency domain are in very good agreement with those obtained in the time domain. And then, the laser-generated Lamb waves in the elastic and viscoelastic thin plates are calculated, respectively. By comparing the waveforms of Lamb wave in the two plates, the influence of the material viscoelasticity on the propagation of Lamb waves is studied. Moreover, the effect of the material viscoelastic rate on Lamb waves is analyzed in detail.

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Tài liệu tham khảo

1967, Rayleigh and Lamb Waves: Physical Theory and Applications

1990, Appl. Phys. Lett., 57, 1882, 10.1063/1.103999

1993, Ultrasonics, 31, 425, 10.1016/0041-624X(93)90051-Z

1999, Ultrasonics, 37, 405, 10.1016/S0041-624X(99)00025-6

2004, J. Appl. Phys., 96, 3645, 10.1063/1.1776323

2005, Appl. Phys. Lett., 87, 194109, 10.1063/1.2128063

1987, Appl. Phys. Lett., 51, 1066, 10.1063/1.98793

1990, Appl. Phys. Lett., 57, 551, 10.1063/1.104103

1996, NDT & E Int., 29, 301, 10.1016/S0963-8695(96)00033-3

2006, Ultrasonics, 44, e1265, 10.1016/j.ultras.2006.05.080

1994, Appl. Phys. Lett., 64, 554, 10.1063/1.111101

1995, Appl. Phys. A: Mater. Sci. Process., 61, 311, 10.1007/BF01538196

1999, Appl. Phys. Lett., 74, 2087, 10.1063/1.123766

2000, Appl. Phys. B: Lasers Opt., 70, 57, 10.1007/s003400050008

1975, Viscoelasticity, 2nd ed.

1980, Viscoelastic Properties of Polymers

1971, Theory of Viscoelasticity: An Introduction

1998, J. Acoust. Soc. Am., 104, 874, 10.1121/1.423332

2003, J. Acoust. Soc. Am., 113, 2622, 10.1121/1.1562913

2009, Acta Phys. Sin., 58, 6344, 10.7498/aps.58.6344

2004, J. Appl. Phys., 95, 2116, 10.1063/1.1637712

2008, Appl. Phys. A: Mater. Sci. Process., 91, 173, 10.1007/s00339-007-4354-5

2005, J. Acoust. Soc. Am., 117, 1108, 10.1121/1.1841731

2008, J. Acoust. Soc. Am., 123, 1963, 10.1121/1.2885742

2001, Appl. Phys. Lett., 79, 2288, 10.1063/1.1407304

2002, Appl. Phys. Lett., 80, 691, 10.1063/1.1434303

2004, Rev. Prog. Quant. Nondestr. Eval., 23, 238

2001, J. Comput. Acoust., 9, 1127, 10.1142/S0218396X0100098X

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Journal of Applied Physics

Tập 106 Số 7

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