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Auteur Mahieddine Chettah |
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Titre : Comportement dynamique des structures altérées. Type de document : texte imprimé Auteurs : Mahieddine Chettah, Auteur ; Rachid Lassoued, Directeur de thèse Mention d'édition : mars-20 Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2020 Importance : 122 f. Format : 30 cm. Note générale : Doctorat 3éme CYCLE LMD.
1 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
Génie CivilTags : G.civil: Performance et durabilité des constructions Vibration libre et forcée Poutre fissurée Ressort de rotation Méthode de Rayleigh Détection de fissure Supports élastiques Free and forced vibration Cracked beam Rotational spring Rayleigh’s method Crack detection Elastic supports الاهتزاز الحر والقسري عارضة متشققة نابض دوران طريقة رايلي الكشف عن التشقق مساند مرنة Index. décimale : 624 Génie civil Résumé :
In this work, the effects of crack depth and crack location on the free and forced vibrations of cracked beam structures were investigated analytically by extending the Rayleigh method. The theory of Euler-Bernoulli beams is used to model the cracked beam and the crack is represented as a rotation spring according to the principles of fracture mechanics. The effects of crack depth and location on the natural frequency, shape of the mode and transverse displacement are presented in detail. The comparison between the present work and the results obtained in several cases of previous experimental, analytical and numerical studies shows a very good agreement. The theoretical results are very satisfactory and suggest that a practical method could be developed, which would allow considerable savings in terms of computational effort and costs associated with dynamic analysis and crack detection.
Diplôme : Doctorat En ligne : ../theses/gcivil/CHE7618.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11454 Comportement dynamique des structures altérées. [texte imprimé] / Mahieddine Chettah, Auteur ; Rachid Lassoued, Directeur de thèse . - mars-20 . - جامعة الإخوة منتوري قسنطينة, 2020 . - 122 f. ; 30 cm.
Doctorat 3éme CYCLE LMD.
1 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Génie CivilTags : G.civil: Performance et durabilité des constructions Vibration libre et forcée Poutre fissurée Ressort de rotation Méthode de Rayleigh Détection de fissure Supports élastiques Free and forced vibration Cracked beam Rotational spring Rayleigh’s method Crack detection Elastic supports الاهتزاز الحر والقسري عارضة متشققة نابض دوران طريقة رايلي الكشف عن التشقق مساند مرنة Index. décimale : 624 Génie civil Résumé :
In this work, the effects of crack depth and crack location on the free and forced vibrations of cracked beam structures were investigated analytically by extending the Rayleigh method. The theory of Euler-Bernoulli beams is used to model the cracked beam and the crack is represented as a rotation spring according to the principles of fracture mechanics. The effects of crack depth and location on the natural frequency, shape of the mode and transverse displacement are presented in detail. The comparison between the present work and the results obtained in several cases of previous experimental, analytical and numerical studies shows a very good agreement. The theoretical results are very satisfactory and suggest that a practical method could be developed, which would allow considerable savings in terms of computational effort and costs associated with dynamic analysis and crack detection.
Diplôme : Doctorat En ligne : ../theses/gcivil/CHE7618.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11454 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité CHE/7618 CHE/7618 Thèse Bibliothèque principale Thèses Disponible
