Acoustic wave propagation in continuous functionally graded plates

Author

Lefebvre, J.E. ; Zhang, V. ; Sadaune, V. ; Gryba, T. ; Ouaftouh, M.

Author_Institution

Dept. OAE, Valenciennes Univ., France

Volume

1

fYear

1999

fDate

17-20 Oct. 1999

Firstpage

855

Abstract

The propagation of guided waves in continuous functionally graded plates (FGPs) is studied by using Legendre polynomials. Dispersion curves, power and field profiles are easily obtained. Numerical results are given for a graded plate. It is felt that the presented method could be of quite practical interest either in nondestructive testing of FGPs to identify the best inspection strategies or, by means of a numerical inversion algorithm, for determination of through-thickness gradients in material parameters.

Keywords

Legendre polynomials; functionally graded materials; surface acoustic waves; ultrasonic dispersion; ultrasonic materials testing; ultrasonic propagation; Lamb-like modes; Legendre polynomials; acoustic field profiles; acoustic wave propagation; boundary conditions; continuous functionally graded plates; dispersion curves; guided waves; inspection strategies; material parameters; nondestructive testing; numerical inversion algorithm; orthonormal functions; power profiles; through-thickness gradients; Acoustic propagation; Acoustic waves; Boundary conditions; Composite materials; Inspection; Material properties; Materials testing; Nondestructive testing; Polynomials; Stress;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1999. Proceedings. 1999 IEEE

Conference_Location

Caesars Tahoe, NV

ISSN

1051-0117

Print_ISBN

0-7803-5722-1

Type

conf

DOI

10.1109/ULTSYM.1999.849531

Filename

849531