BibliotecaPortal de investigación
es | en | GAL
  • Inicio
  • Contact us
  • Give feedback
  • Help
    • About Investigo
    • Search and Find
    • Submit
    • Intellectual Property
    • Open Access Policy
  • Links
    • Sherpa / Romeo
    • Dulcinea
    • OpenDOAR
    • Dialnet Plus
    • ORCID
    • Creative Commons
    • UNESCO Nomenclature
    • español
    • English
    • Gallegan
JavaScript is disabled for your browser. Some features of this site may not work without it.
All of InvestigoAuthorsTitles Materias Unesco Research GroupsType of ContentsJournal TitlesThis CollectionAuthorsTitlesUNESCO SubjectsResearch GroupsType of ContentsJournal Titles

Depositar

Guía de autoarchivo (en construcción)Solicitar permiso a una editorial

Statistics

View Usage Statistics

Modelling for characterizing defects in plates using two-dimensional maps of instantaneous ultrasonic out-of-plane displacement obtained by pulsed TV-holography

López Vázquez, José CarlosAutor UVIGO; Deán Ben, José LuisAutor UVIGO; Trillo Yáñez, María CristinaAutor UVIGO; Fernández Doval, Ángel ManuelAutor UVIGO; Fernández Fernández, José LuisAutor UVIGO; Amlani, Faisal; Bruno, Oscar P.
Date: 2009-06-15
UNIVERSAL IDENTIFIER: http://hdl.handle.net/11093/233
EDITED VERSION: http://proceedings.spiedigitallibrary.org/proceeding.aspx?doi=10.1117/12.827819
UNESCO SUBJECT: 3311.11 Instrumentos Opticos ; 2209.07 Holografía ; 2201.09 Ultrasonidos
DOCUMENT TYPE: conferenceObject

Abstract

It has been demonstrated that non-destructive inspection of plates can be performed by using two-dimensional maps of instantaneous out-of-plane displacements obtained with a self-developed pulsed TV-holography system. Specifically, the interaction of guided elastic waves with defects produces scattering patterns that contain information about the defects (position, dimensions, orientation, etc.). For quantitative characterization on this basis, modeling of the wave propagation and interaction with the defects is necessary. In fact, the development of models for scattering of waves in plates is yet an active research field in which the most reliable approach is usually based on the rigorous formulation of elasticity theory. By contrast, in this work the capability of a simple two-dimensional scalar model for obtaining a quantitative description of the output two-dimensional maps associated to artificial defects in plates is studied. Some experiments recording the interaction of narrowband Rayleigh waves with artificial defects in aluminum plates are presented, in which the acoustic field is obtained from the TV-holography optical phase-change maps by means of a specially developed two-step spatio-temporal Fourier transform method. For the modeling, harmonic regime and free-stress boundary conditions are assumed. Comparisons between experimental and simulated maps are included for defects with different shapes.
Show full item record

Files in this item

[PDF]
Name:
lopezvazquez09_7389_118.pdf
Size:
1.936Mb
Format:
PDF
View/Open

El Repositorio Institucional de la Universidade de Vigo Investigo se difunden en:

INFORMACIÓN
+34 986 913 921
investigo@uvigo.es

Accesibilidad | Aviso legal | Protección de datos
Logo UVigo

INFORMACIÓN
+34 986 812 000
informacion@uvigo.es

CONTACTO

CAMPUS DO MAR

CAMPUS DE OURENSE
+34 988 387 102
Campus da Auga

CAIXA DE QUEIXAS, SUXESTIÓNS E PARABÉNS

TRANSPARENCIA

CAMPUS DE PONTEVEDRA
+34 986 801 949
Campus CREA

OUTRAS WEBS INSTITUCIONAIS

EMERXENCIAS

CAMPUS DE VIGO
+34 986 812 000
Campus Vigo Tecnolóxico

MURO SOCIAL