Modeling wave propagation in damped waveguides of arbitrary cross-section

被引：2

作者：

Bartoli, Ivan ^{[1
]}

Marzani, Alessandro ^{[2
]}

Matt, Howard ^{[1
]}

di Scalea, Francesco Lanza ^{[1
]}

Viola, Erasmo ^{[2
]}

机构：

[1] Univ Calif San Diego, Dept Struct Engn, NDE & Struct Hlth Monitoring Lab, 9500 Gilman Dr,MC 0085, La Jolla, CA 92093 USA

[2] Univ Bologna, DISTART, I-40136 Bologna, Italy

来源：

HEALTH MONITORING AND SMART NONDESTRUCTIVE EVALUATION OF STRUCTURAL AND BIOLOGICAL SYSTEMS V | 2006年 / 6177卷

基金：

美国国家科学基金会;

关键词：

Semi-Analytical Finite Element method; linear viscoelasticity; material damping; guided wave attenuation; energy velocity;

D O I：

10.1117/12.640032

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

In this paper the Semi-Analytical Finite Element (SAFE) method for modeling guided wave propagation is extended to account for linear viscoelastic material damping. Linear viscoelasticity is introduced by allowing for complex stiffness constitutive matrices for the material. Dispersive characteristics of viscoelastic waveguides, such as phase velocity, attenuation, energy velocity and cross-sectional wavestructures are extracted. Knowledge of the above-mentioned dispersive properties is important in any structural health monitoring attempt that uses ultrasonic guided waves for long range inspection. The proposed damped formulation is applied to several waveguides with different mechanical and geometric properties. In particular, a viscoelastic isotropic plate, a railroad track and a pipe are studied.

引用

页数：12

共 50 条

[31] Wave propagation in curved waveguides of rectangular cross section
Cornet, P
Dusséaux, R
Chandezon, J
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1999, 47 (07) : 965 - 972
[32] A study of wave propagation in varying cross-section waveguides by modal decomposition .2. Results
Amir, N
Pagneux, V
Kergomard, J
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1997, 101 (05): : 2504 - 2517
[33] Universal method for calculating the open dielectric waveguides with arbitrary cross-section
Malyshev, G. S.
Raevskii, A. S.
Raevskii, S. B.
Titarenko, A. A.
OPTICAL TECHNOLOGIES FOR TELECOMMUNICATIONS 2013, 2014, 9156
[34] Modal boundary conditions for waveguides of arbitrary cross-section with SCN TLM
Herring, JL
Righi, M
Hoefer, WJR
1997 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST, VOLS I-III: HIGH FREQUENCIES IN HIGH PLACES, 1997, : 325 - 328
[35] WAVEGUIDES OF ARBITRARY CROSS-SECTION BY SOLUTION OF A NONLINEAR INTEGRAL EIGENVALUE EQUATION
SPIELMAN, BE
HARRINGT.RF
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1972, MT20 (09) : 578 - &
[36] SOUND-PROPAGATION IN NARROW TUBES OF ARBITRARY CROSS-SECTION
CUMMINGS, A
JOURNAL OF SOUND AND VIBRATION, 1993, 162 (01) : 27 - 42
[37] Noise propagation from a cutting of arbitrary cross-section and impedance
Peplow, AT
Chandler-Wilde, SN
JOURNAL OF SOUND AND VIBRATION, 1999, 223 (03) : 355 - 378
[38] FUNDAMENTAL MODE PROPAGATION ON DIELECTRIC FIBERS OF ARBITRARY CROSS-SECTION
KEUSTER, EF
PATE, RC
IEE PROCEEDINGS-H MICROWAVES ANTENNAS AND PROPAGATION, 1980, 127 (01) : 41 - 51
[39] Mathematical modeling of electromagnetic wave diffraction by inhomogeneous dielectric cylinders of arbitrary cross-section
Lerer, A
Kalinchenko, G
MMET 2000: INTERNATIONAL CONFERENCE ON MATHEMATICAL METHODS IN ELECTROMAGNETIC THEORY, VOLS 1 AND 2, CONFERENCE PROCEEDINGS, 2000, : 209 - 211
[40] ELASTIC WAVE PROPAGATION IN RODS OF ARBITRARY CROSS SECTION
ROSENFELD, RL
MIKLOWIT.J
JOURNAL OF APPLIED MECHANICS, 1965, 32 (02): : 290 - +

← 1 2 3 4 5 →