Experimental determination of elastic constants of an orthotropic composite plate by using lamb waves

An inversion procedure is described to determine the elastic constants of an orthotropic plate by using experimental data on Lamb wave propagation and a curve fitting algorithm based on the Nelder–Mead simplex method. A sample made from glass-epoxy was tested and eight out of nine engineering consta...

Full description

Saved in:
Bibliographic Details
Published inMechanics of composite materials Vol. 47; no. 4; pp. 435 - 446
Main Authors Lasn, K., Klauson, A., Chati, F., Décultot, D.
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.09.2011
Springer
Springer Verlag
Subjects
Algorithms
Analysis
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Composites
Constants
Convergence
Elastic constants
Engineering Sciences
Epoxy resins
Glass
Glass fiber reinforced plastics
Inversions
Lamb waves
Materials Science
Natural Materials
Orthotropic plates
Solid Mechanics
Wave propagation
Lamb wave
inversion of elastic constants
composite material
Online AccessGet full text

Cover

More Information
Summary:An inversion procedure is described to determine the elastic constants of an orthotropic plate by using experimental data on Lamb wave propagation and a curve fitting algorithm based on the Nelder–Mead simplex method. A sample made from glass-epoxy was tested and eight out of nine engineering constants were recovered from Lamb wave propagation measurements in the principal material directions. To improve convergence, the phase velocity sensitivities to different elastic constants are considered. The inversion results agree rather well with experimental data and static tension measurements for the longitudinal elastic modulus.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0191-5665
1573-8922
DOI:10.1007/s11029-011-9221-y