| Titre : |
Caractérisation des hétérostructures par la methode des impédances et par la permittivité diélectrique effective complexe |
| Type de document : |
texte imprimé |
| Auteurs : |
Ahmed Beroual ; Univ. de Constantine, Éditeur scientifique ; Hacene Houari, Directeur de thèse |
| Année de publication : |
2006 |
| Importance : |
125 f. |
| Note générale : |
01 Disponible à la salle de recherche 02 Disponibles au magazin de la B.U.C. 01 CD |
| Langues : |
Français (fre) |
| Catégories : |
Français - Anglais
Génie Civil
|
| Tags : |
Hétérostructures Impédances Permittivité |
| Index. décimale : |
624 Génie civil |
| Résumé : |
This work deals with the characterisation of heterostructures by two nondestructive methods: (1) the equivalent electrical impedance method for systems of simple geometry; and (2) the method of the effective complex permittivity for systems of complicated geometry. The simulated results obtained
using each one of both methods are experimentally validated. In the first case. The relationships of the equivalent impedance are analytically determined for various heterostructures , and mixture laws giving the effective dielectric permittivity and resistivity are also deduced in function of the concentration of inclusions and both the permittivity and resistivity of each component of the heterostructure. To illustrate this method, experimental validations are achieved on sandwich structures and on samples containing identical aligned inclusions, in the form of square section
tubes, embedded in a polymer matrix and which are filled either by air or water. In the second case, the effective complex permittivity is computed by a numerical approach based on the boundary integral equation method (BIEM) and the PHI3D package. The considered. Heterostructure consisting of a host material and inclusions periodically distributed. It’s also shown that this method enables to
predict the presence of inclusions and their concentration in a given heterostructure. Experimental validations, carried out on samples composed of cylindrical cavities, filled either by water or air, embedded in a polymer matrix, are also presented. |
| Diplôme : |
Doctorat |
| En ligne : |
../theses/gcivil/BER5319.pdf |
| Format de la ressource électronique : |
pdf |
| Permalink : |
index.php?lvl=notice_display&id=623 |
Caractérisation des hétérostructures par la methode des impédances et par la permittivité diélectrique effective complexe [texte imprimé] / Ahmed Beroual ; Univ. de Constantine, Éditeur scientifique ; Hacene Houari, Directeur de thèse . - 2006 . - 125 f. 01 Disponible à la salle de recherche 02 Disponibles au magazin de la B.U.C. 01 CD Langues : Français ( fre)
| Catégories : |
Français - Anglais
Génie Civil
|
| Tags : |
Hétérostructures Impédances Permittivité |
| Index. décimale : |
624 Génie civil |
| Résumé : |
This work deals with the characterisation of heterostructures by two nondestructive methods: (1) the equivalent electrical impedance method for systems of simple geometry; and (2) the method of the effective complex permittivity for systems of complicated geometry. The simulated results obtained
using each one of both methods are experimentally validated. In the first case. The relationships of the equivalent impedance are analytically determined for various heterostructures , and mixture laws giving the effective dielectric permittivity and resistivity are also deduced in function of the concentration of inclusions and both the permittivity and resistivity of each component of the heterostructure. To illustrate this method, experimental validations are achieved on sandwich structures and on samples containing identical aligned inclusions, in the form of square section
tubes, embedded in a polymer matrix and which are filled either by air or water. In the second case, the effective complex permittivity is computed by a numerical approach based on the boundary integral equation method (BIEM) and the PHI3D package. The considered. Heterostructure consisting of a host material and inclusions periodically distributed. It’s also shown that this method enables to
predict the presence of inclusions and their concentration in a given heterostructure. Experimental validations, carried out on samples composed of cylindrical cavities, filled either by water or air, embedded in a polymer matrix, are also presented. |
| Diplôme : |
Doctorat |
| En ligne : |
../theses/gcivil/BER5319.pdf |
| Format de la ressource électronique : |
pdf |
| Permalink : |
index.php?lvl=notice_display&id=623 |
|
Caractérisation des hétérostructures par la methode des impédances et par la permittivité diélectrique effective complexe
