| Titre : |
Thermoelastic deformation of a medium weakened by an annular crack |
| Type de document : |
document électronique |
| Auteurs : |
Zakaria Baka, Auteur ; Belkacem Kebli, Directeur de thèse |
| Editeur : |
[S.l.] : [s.n.] |
| Année de publication : |
2024 |
| Importance : |
1 fichier PDF (26 Mo) |
| Présentation : |
ill. |
| Note générale : |
Mode d'accès : accès au texte intégral par intranet.
Thèse de Doctorat : Génie Mécanique : Alger, Ecole Nationale Polytechnique : 2024
Bibliogr. p. 151 - 164 . - Annexe p. 165 - 203
Thèse confidentielle jusqu'à juillet 2025 |
| Langues : |
Anglais (eng) |
| Mots-clés : |
Heat conduction
Thermoelastic deformation
Crack
Mixed boundary
value problem
Integral equations
Stress intensity factor |
| Index. décimale : |
D001424 |
| Résumé : |
This research investigates the thermo-mechanical behavior of cracked media by analyzing heat conduction, elastic and thermoelastic deformations within a medium containing a circular or annular crack. Formulated as mixed boundary value problems, the problems are solved using the Hankel integral transform technique, reducing them to dual or triple integral equations. Solutions are then derived through infinite sets of algebraic equations utilizing some integral relations and Gegenbauer’s addition formulas. Consequently, closed-form expressions for various key parameters are obtained, including thermal and mechanical fields, heat flux intensity factors and mixed mode I-II stress intensity factors. Excellent agreement with numerical simulations and existing results for limiting cases validates the obtained solutions. Selected graphical representations provide valuable insights into the behavior and dependence of these physical quantities on various parameters, such as the size and depth of the crack. This research contributes significantly to the understanding of thermo-mechanical behavior in cracked media. This research significantly contributes to the understanding of heat conduction, elastic and thermoelastic deformations in cracked media. |
Thermoelastic deformation of a medium weakened by an annular crack [document électronique] / Zakaria Baka, Auteur ; Belkacem Kebli, Directeur de thèse . - [S.l.] : [s.n.], 2024 . - 1 fichier PDF (26 Mo) : ill. Mode d'accès : accès au texte intégral par intranet.
Thèse de Doctorat : Génie Mécanique : Alger, Ecole Nationale Polytechnique : 2024
Bibliogr. p. 151 - 164 . - Annexe p. 165 - 203
Thèse confidentielle jusqu'à juillet 2025 Langues : Anglais ( eng)
| Mots-clés : |
Heat conduction
Thermoelastic deformation
Crack
Mixed boundary
value problem
Integral equations
Stress intensity factor |
| Index. décimale : |
D001424 |
| Résumé : |
This research investigates the thermo-mechanical behavior of cracked media by analyzing heat conduction, elastic and thermoelastic deformations within a medium containing a circular or annular crack. Formulated as mixed boundary value problems, the problems are solved using the Hankel integral transform technique, reducing them to dual or triple integral equations. Solutions are then derived through infinite sets of algebraic equations utilizing some integral relations and Gegenbauer’s addition formulas. Consequently, closed-form expressions for various key parameters are obtained, including thermal and mechanical fields, heat flux intensity factors and mixed mode I-II stress intensity factors. Excellent agreement with numerical simulations and existing results for limiting cases validates the obtained solutions. Selected graphical representations provide valuable insights into the behavior and dependence of these physical quantities on various parameters, such as the size and depth of the crack. This research contributes significantly to the understanding of thermo-mechanical behavior in cracked media. This research significantly contributes to the understanding of heat conduction, elastic and thermoelastic deformations in cracked media. |
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D000100 
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