• Aucun résultat trouvé

Guided Wave Sensitivity for De-Bond Defects in Aluminum Skin Honeycomb Core

N/A
N/A
Info
Télécharger
Protected

Academic year: 2021

Partager "Guided Wave Sensitivity for De-Bond Defects in Aluminum Skin Honeycomb Core"

Copied!
1
0
0

Chargement.... (Voir le texte intégral maintenant)

Texte intégral

(1)

International Journal of Mathematical, Computational, Physical and Quantum Engineering

Volume 7, Issue 9, 2013, Pages 928-931

Guided Wave Sensitivity for De-Bond Defects in Aluminum Skin Honeycomb Core

A. Satour, F. Boubenider, R. Halimi, A. Badidibouda

Abstract: Sandwich plates are finding an increasing range ofapplication in the aircraft industry. The inspection of honeycomb composite structure by conventional ultrasonic technique is complexand very time consuming. The present study demonstrates a technique using guided Lamb waves at low frequencies to predict de-bond defects in aluminum skin_honeycomb core sandwich structure used in aeronautics. The numerical method was investigated for drawing the dispersion and displacement curves of ultrasonic Lamb wave propagated in Aluminum plate. An experimental study was carried out to check the theoretical prediction.

The detection of unsticking between the skin and the core was tested by the two first modes for a low frequency. It was found that A0 mode is more sensitive to delamination defect compared to S0 mode.

Keywords : Damage detection, delamination, guided waves, Sandwich structure

Centre de Recherche en Technologies Industrielles - CRTI - www.crti.dz

Powered by TCPDF (www.tcpdf.org)

Références

Télécharger maintenant ( PDF - 1 Page - 7.69 KB )

Documents relatifs

Design and development of a torsional guided-waves inspection system for the detection and sizing of defects in pipes

EFFECT OF DEFECT ANGULAR-POSITION ON THE WAVE REFLECTION AND TRANSMISSION COEFFICIENTS: NUMERICAL INVESTIGATION BY THE WAVE FINITE ELEMENT

Numerical and Experimental Study of Energy Absorption in Aluminum Corrugated Core Sandwich Panels by Drop Hammer Test

The results show that panel height and the geometry of its core play an important role in the energy absorbability impact strength, as the panels with more height have higher

Fatigue in Aluminium Honeycomb-core Plates

Two different failure modes of the honeycomb core structure were examined: core indentation and shear failure. Core indentation induces buckling

RAMAN SPECTROSCOPY IN GUIDED OPTICAL WAVES

Résumé - Nous avons obtenu et analysé les spectres Raman de polymères en films minces et de la région interfaciale entre des films de polymères lamellaires, en couplant le

STUDY OF DEFECTS IN a-Ge AND a-GeHx USING SURFACE ACOUSTIC WAVE TECHNIQUE

Incorporation of hydrogen suppresses the strong absorption peak in a-Ge and induces new features in the attenuation. Substitution of hydrogen by deuterium supports

Use of Guided Waves for Inspection of CompositeSkin-Honeycomb Core

Abstract: Sandwich plates, made of two aluminum layers and a metal honey comb core are used inthe aircraft industry.. The purpose of this study is to show the ultrasonic guided

Short-Term Effects of a Multidimensional Stress Prevention Program on Quality of Life, Well-Being and Psychological Resources : A Randomized Controlled Trial

In accordance with our hypotheses, our results showed significant reduction of psychological symptoms, including anxiety, interpersonal problems, and symptoms of pain; a

Murillo en el siglo XIX: la Corona poética dedicada a Murillo (1863) y la corona de Montpensier, o el uso político de la devoción = Murillo in the Nineteenth Century: the Corona poética dedicada a Murillo (1863) and the crown of Montpensi

Varios de estos personajes se contaban entre los discípulos directos de Alberto Lista, como el mismo Fernández Espino, Rodríguez Zapata (el más conocido de sus