Result: Elastic constants determination using the velocity of only one propagating mode: VL, VT or VR

Title:
Elastic constants determination using the velocity of only one propagating mode: VL, VT or VR
Authors:
DOGHMANE, M, HADJOUB, I, DOGHMANE, A, HADJOUB, F
Source:
CSM4 : Quatrième colloque franco-libanais sur la science des matériaux, Beyrouth, Liban, 26-28 mai 2004Journal de physique. IV. 124:341-345
Publisher Information:
Les Ulis: EDP sciences, 2005.
Publication Year:
2005
Physical Description:
print, 7 ref
Original Material:
INIST-CNRS
Subject Terms:
Physics, Physique, Sciences exactes et technologie, Exact sciences and technology, Physique, Physics, Etat condense: structure, proprietes mecaniques et thermiques, Condensed matter: structure, mechanical and thermal properties, Propriétés mécaniques et acoustiques de l'état condensé, Mechanical and acoustical properties of condensed matter, Propriétés mécaniques des solides, Mechanical properties of solids, Elasticité, constantes d'élasticité, Elasticity, elastic constants, Constante élasticité, Elastic constants, Microscopie acoustique, Acoustic microscopy, Métal, Metals, Méthode mesure, Measuring methods, Onde Rayleigh, Rayleigh waves, Vitesse onde, Wave velocity, Velocidad onda, 6220D
Document Type:
Conference Conference Paper
File Description:
text
Language:
English
Author Affiliations:
Département de Physique, Faculté des Sciences, Université de Guelma, Algeria
Laboratoire des Semi-Conducteurs, Département de Physique, Faculté des Sciences, Université Badji-Mokhtar, BP. 12, 23000 Annaba, Algeria
ISSN:
1155-4339
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=16786021
Rights:
Copyright 2005 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Physics of condensed state: structure, mechanical and thermal properties
Accession Number:
edscal.16786021
Database:
PASCAL Archive

Further Information

In nondestructive micro-characterization, elastic constants are generally expressed in terms of velocities of longitudinal waves, VL, and transverse waves, VT. However, it is often difficult to determine these velocities by a single measurement. In this context, we propose the derivation of new expressions according to only one parameter: VL, VT or Rayleigh velocity, VR. Thus, by using Viktorov formula and certain acceptable physically approximations, deduced, for any material of density p the following relations: E = 0.757 ρVL2, E = 2.586 ρVT2, E = 2.99 ρVR2, G = 0.293 ρVL2 and G = 1.156 ρVR2.The validity of these relations is put into evidence for a large number of materials (Al, Cd, Fe, Mg, Mo, Ti, W, Pt, Ni, etc) characterized by fast, medium or slow velocities. Excellent precisions of 0.007 % and 0.009 % were obtained respectively for G = f(VL) with Mo and for E = f(VT) with Fe. These very encouraging results find their applications in acoustic microscopy into which only one surface mode often dominates the acoustic materials signatures, V(z).