Finite-Element Analysis of Lamb Wave Propagation in a Thin Aluminum Plate
- 1 April 2009
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Aerospace Engineering
- Vol. 22 (2) , 185-197
Abstract
Structural health monitoring (SHM) is an emerging technology that can be used to identify, locate, and quantify structural damages before failure. Among SHM techniques, Lamb waves are widely used since they can cover large areas from a single location. The development of various structural simulation programs has lead to increasing interest in whether SHM data obtained from the simulation can be verified by experimentation. The objective of this research is to determine the Lamb wave responses of SHM models using the finite-element software package ABAQUS CAE as a computational tool for an isotropic plate. These results are compared to experimental results and theoretical predictions under isothermal and thermal gradient conditions to assess the sensitivity of piezoelectric generated Lamb wave propagation. Simulations of isothermal tests are conducted over a temperature range of 0–190°F using 100 and 300 kHz as excitation frequencies. The changes in temperature-dependent material properties are used to me...Keywords
This publication has 10 references indexed in Scilit:
- Tuned Lamb Wave Excitation and Detection with Piezoelectric Wafer Active Sensors for Structural Health MonitoringJournal of Intelligent Material Systems and Structures, 2005
- Integrated Structural Health Assessment Using Piezoelectric Active SensorsShock and Vibration, 2005
- Modeling elastic wave propagation in waveguides with the finite element methodNDT & E International, 1999
- Efficient use of Lamb modes for detecting defects in large platesUltrasonics, 1998
- Defect detection in pipes using guided wavesUltrasonics, 1998
- Detection of kissing bonds by Lamb wavesUltrasonics, 1998
- The use of Lamb waves for the long range inspection of large structuresUltrasonics, 1996
- A Lamb wave scanning approach for the mapping of defects in [0/90] titanium matrix compositesUltrasonics, 1996
- A two-dimensional Fourier transform method for the measurement of propagating multimode signalsThe Journal of the Acoustical Society of America, 1991
- On waves in an elastic plateProceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1917