Local interaction modelling for acousto-ultrasonic wave propagation

被引：1

作者：

Lee, BC ^{[1
]}

Staszewski, WJ ^{[1
]}

机构：

[1] Univ Sheffield, Dept Mech Engn, Dynam Res Grp, Sheffield, S Yorkshire, England

来源：

SMART STRUCTURES AND MATERIALS 2002: MODELING, SIGNAL PROCESSING, AND CONTROL | 2002年 / 4693卷

关键词：

Lamb waves; modeling and structural health monitoring;

D O I：

10.1117/12.475225

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Damage detection in metallic structures has been the subject of many investigations. Recent developments have shown applications of acousto-ultrasonic and Lamb wave testing. Lamb wave inspection is based on theory of longitudinal waves propagating in plates. In general, the principles of acousto-ultrasonic and Lamb wave inspection techniques are similar. Damage in a structure is identified by a change in the output signal. Previous studies show that even simple input signals can lead to complex output waves, which are difficult to interpret. It is clear that knowledge and understanding of wave propagation in analysed structures can ease the interpretation of damage detection results. The paper reports an application of local interaction modelling of acousto-ultrasonic waves in metallic structures. The focus of the analysis is on one-dimensional interactions between different material boundaries. This includes modelling of acousto-ultrasonic waves in piezoceramic, adhesive glue and copper in a actuator/sensor configuration. The study also involves experimental validation of the simulation results. The method shows the potential for modelling of acousto-ultrasonic waves in complex media for damage detection applications.

引用

页码：279 / 288

页数：10

共 30 条

[1]

Achenbach J. D., 1984, WAVE PROPAGATION ELA

[2]

AGOSTINI V, 1999, AIP P NONDESTRUCTIVE, V9, P455

[3] OPTIMIZATION OF LAMB WAVE INSPECTION TECHNIQUES [J].

ALLEYNE, DN ;

CAWLEY, P .

NDT & E INTERNATIONAL, 1992, 25 (01) :11-22

[4]

[Anonymous], 1967, RAYLEIGH LAMB WAVES

[5]

Auld B.A, 1990, ACOUSTIC FIELDS WAVE, VOne

[6]

Boller C, 1997, STRUCTURAL HEALT H MONITORING, P541

[7]

BOLLER C, 1996, AGARD LECT SERIES, V205

[8] The use of Lamb waves for the long range inspection of large structures [J].

Cawley, P ;

Alleyne, D .

ULTRASONICS, 1996, 34 (2-5) :287-290

[9] Ultrasonic pulse propagation in inhomogeneous one-dimensional media [J].

Cretu, N ;

Delsanto, PP ;

Nita, G ;

Rosca, C ;

Scalerandi, M ;

Sturzu, I .

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1998, 104 (01) :57-63

[10] CONNECTION MACHINE SIMULATION OF ULTRASONIC WAVE-PROPAGATION IN MATERIALS .1. THE ONE-DIMENSIONAL CASE [J].

DELSANTO, PP ;

WHITCOMBE, T ;

CHASKELIS, HH ;

MIGNOGNA, RB .

WAVE MOTION, 1992, 16 (01) :65-80

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