Détail de l'auteur
Auteur Salim Meziani |
Documents disponibles écrits par cet auteur (5)
Affiner la recherche Interroger des sources externes
Titre : Analyse du phénomène de rochet : essai et modélisation Type de document : texte imprimé Auteurs : Lynda Djimli ; Univ. de Constantine, Éditeur scientifique ; Salim Meziani, Directeur de thèse Année de publication : 2010 Importance : 145 f. Note générale : 01 Disponible à la salle de recherche 01 Disponible au magazin de la B.U.C. 01 CD Langues : Français (fre) Catégories : Français - Anglais
Génie MécaniqueTags : Optimisation Identification Elastoplasticité Rochet Sur-écrpoissage Index. décimale : 620 Génie Mécanique Diplôme : Doctorat en sciences En ligne : ../theses/gmecanique/DJI5787.pdf Permalink : index.php?lvl=notice_display&id=898 Analyse du phénomène de rochet : essai et modélisation [texte imprimé] / Lynda Djimli ; Univ. de Constantine, Éditeur scientifique ; Salim Meziani, Directeur de thèse . - 2010 . - 145 f.
01 Disponible à la salle de recherche 01 Disponible au magazin de la B.U.C. 01 CD
Langues : Français (fre)
Catégories : Français - Anglais
Génie MécaniqueTags : Optimisation Identification Elastoplasticité Rochet Sur-écrpoissage Index. décimale : 620 Génie Mécanique Diplôme : Doctorat en sciences En ligne : ../theses/gmecanique/DJI5787.pdf Permalink : index.php?lvl=notice_display&id=898 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité DJI/5787 DJI/5787 Thèse Bibliothèque principale Thèses Disponible Contribution à la Prédiction des Conséquences Mécaniques Des Transformations Structurales / Mounir Gaci
Titre : Contribution à la Prédiction des Conséquences Mécaniques Des Transformations Structurales Type de document : texte imprimé Auteurs : Mounir Gaci, Auteur ; Salim Meziani, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2016 Importance : 173 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
Génie MécaniqueTags : Changement de Phase Plasticité de Transformation TRIP FMC Transformation
Structurale Contrainte résiduelle Mono-Grain Multi-Grains Martensite Phase Change Transformation Plasticity SMF Structural Transformation Residual
stress Multi-Grain غيير المرحلة اللدونة التحول FMCالتحول الهيكلي والإجهاد المتبقيى أحادي الحبوب متعدد الحبوب مارتنسيت"Index. décimale : 620 Génie Mécanique Résumé : The phenomenon of structural changes materials caused by procedures such as welding and heat
treatment, involves complex interaction between various aspects: mechanical, thermal and metallurgical
into the material. Therefore, experimental and theoretical studies were conducted to predict these
mechanical impacts in order to optimize the choice of materials to use. In This work we adopt The
Ganghoffer approach usually used in this domain.
This work represents a contribution to the prediction of plasticity of transformation (TRIP) for a
martensitic transformation of the Fe-Ni-C steel. In this regard, a criterion for selecting transformation into
martensite platelets based on the shear mechanical force (SMF). Another originality of this work, is the
development of two numerical models; the first focuses on mono-grain of non regular shape and the
second one concerns the multi-grain scale formed by a set of five grains of different non regular (nonidentical) shapes with a surrounding medium. To validate these models, many numerical simulations were
carried out by imposing more uniaxial and biaxial loads to predict the kinetics and the final value of the
TRIP.
Diplôme : Doctorat en sciences En ligne : ../theses/gmecanique/GAC6944.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10321 Contribution à la Prédiction des Conséquences Mécaniques Des Transformations Structurales [texte imprimé] / Mounir Gaci, Auteur ; Salim Meziani, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2016 . - 173 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Génie MécaniqueTags : Changement de Phase Plasticité de Transformation TRIP FMC Transformation
Structurale Contrainte résiduelle Mono-Grain Multi-Grains Martensite Phase Change Transformation Plasticity SMF Structural Transformation Residual
stress Multi-Grain غيير المرحلة اللدونة التحول FMCالتحول الهيكلي والإجهاد المتبقيى أحادي الحبوب متعدد الحبوب مارتنسيت"Index. décimale : 620 Génie Mécanique Résumé : The phenomenon of structural changes materials caused by procedures such as welding and heat
treatment, involves complex interaction between various aspects: mechanical, thermal and metallurgical
into the material. Therefore, experimental and theoretical studies were conducted to predict these
mechanical impacts in order to optimize the choice of materials to use. In This work we adopt The
Ganghoffer approach usually used in this domain.
This work represents a contribution to the prediction of plasticity of transformation (TRIP) for a
martensitic transformation of the Fe-Ni-C steel. In this regard, a criterion for selecting transformation into
martensite platelets based on the shear mechanical force (SMF). Another originality of this work, is the
development of two numerical models; the first focuses on mono-grain of non regular shape and the
second one concerns the multi-grain scale formed by a set of five grains of different non regular (nonidentical) shapes with a surrounding medium. To validate these models, many numerical simulations were
carried out by imposing more uniaxial and biaxial loads to predict the kinetics and the final value of the
TRIP.
Diplôme : Doctorat en sciences En ligne : ../theses/gmecanique/GAC6944.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10321 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité GAC/6944 GAC/6944 Thèse Bibliothèque principale Thèses Disponible
Titre : Etude et simulations numériques des contraintes thérmomécaniques dans le silicium photovoltaique Type de document : texte imprimé Auteurs : Amor Benmeddour ; Univ. de Constantine, Éditeur scientifique ; Salim Meziani, Directeur de thèse Année de publication : 2010 Importance : 114 f. Note générale : 01 Disponible à la salle de recherche 01 Disponible au magazin de la B.U.C. 01 CD Langues : Français (fre) Catégories : Français - Anglais
Génie MécaniqueTags : Silicium Interface solide/liquide Vitesse de tirage Vitesse de rotation du cristal Vitesse de rotation du creuset Contrainte thérmoélastique Contrainte thermo élasto-plastique Index. décimale : 620 Génie Mécanique En ligne : ../theses/gmecanique/BEN5668.pdf Permalink : index.php?lvl=notice_display&id=690 Etude et simulations numériques des contraintes thérmomécaniques dans le silicium photovoltaique [texte imprimé] / Amor Benmeddour ; Univ. de Constantine, Éditeur scientifique ; Salim Meziani, Directeur de thèse . - 2010 . - 114 f.
01 Disponible à la salle de recherche 01 Disponible au magazin de la B.U.C. 01 CD
Langues : Français (fre)
Catégories : Français - Anglais
Génie MécaniqueTags : Silicium Interface solide/liquide Vitesse de tirage Vitesse de rotation du cristal Vitesse de rotation du creuset Contrainte thérmoélastique Contrainte thermo élasto-plastique Index. décimale : 620 Génie Mécanique En ligne : ../theses/gmecanique/BEN5668.pdf Permalink : index.php?lvl=notice_display&id=690 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOU/5668 BOU/5668 Thèse Bibliothèque principale Thèses Disponible
Titre : "Modelisation analytique des contraintes residuelles dans les assemblages tubes-plaques tubulaires " Type de document : texte imprimé Auteurs : Ali Mohammedi, Auteur ; Salim Meziani, Directeur de thèse Editeur : constantine [Algérie] : Université Constantine 1 Année de publication : 2014 Importance : 77 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
Génie MécaniqueTags : "assemblage tubes-plaque à tubes, dudgeonnage hydraulique, contraintes
résiduelles, pression résiduelle de contact, écrouissage."
"tube-to-tube sheet joint, hydraulic expansion, residual stress, residual contact
pressure, strain hardening."
: تجميع أنابيب لوحة أنابيب، توسيع بالضغط الهيدروليكي، إجهادات متبقية، ضغط تماس متبقيIndex. décimale : 620 Génie Mécanique Résumé : "To ensure the integrity of a tubular exchanger, tubes to tub sheet assembly has seal plates,
positioning the tubes to absorb the different loads and increase the rigidity of the assembly.
These functions are performed by an optimized maximum pressure expander choice, by
geometrical, mechanical and thermal characteristics of tubes and plate. Often when in service,
the sealing assemblies is lost because of the loss of the residual contact pressure, produced by
the manufacturing process, as the effects of creep and relaxation, or due to the emergence
cracks in the tubes at the transition zone due to mechanical and thermal loads, under the effect
of stress corrosion cracking (SCC). The vibrations generated by the fluid flow could also
introduce a mechanism of additional rupture.
At first, the research was interested in the expansion process, and then they were oriented
toward the axial resistance and it was only later that they were oriented to the residual stresses
and degradation mechanisms of the assembly.Several models have been developed to predict the residual contact pressure at the end of the
expansion process: one based on an assumption that the assembly model is elastic perfectly
plastic, another taking into account the hardening materials by a constitutive bilinear law, etc.
All these models have their strengths and weaknesses.
Recently a new analytical model has been developed introducing the effect on the creep on
the relaxation of the residual stress and its effect on the residual contact pressure at the end of
the expansion process and in service."
Diplôme : Magistère En ligne : ../theses/gmecanique/MOH6569.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=9687 "Modelisation analytique des contraintes residuelles dans les assemblages tubes-plaques tubulaires " [texte imprimé] / Ali Mohammedi, Auteur ; Salim Meziani, Directeur de thèse . - constantine [Algérie] : Université Constantine 1, 2014 . - 77 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Génie MécaniqueTags : "assemblage tubes-plaque à tubes, dudgeonnage hydraulique, contraintes
résiduelles, pression résiduelle de contact, écrouissage."
"tube-to-tube sheet joint, hydraulic expansion, residual stress, residual contact
pressure, strain hardening."
: تجميع أنابيب لوحة أنابيب، توسيع بالضغط الهيدروليكي، إجهادات متبقية، ضغط تماس متبقيIndex. décimale : 620 Génie Mécanique Résumé : "To ensure the integrity of a tubular exchanger, tubes to tub sheet assembly has seal plates,
positioning the tubes to absorb the different loads and increase the rigidity of the assembly.
These functions are performed by an optimized maximum pressure expander choice, by
geometrical, mechanical and thermal characteristics of tubes and plate. Often when in service,
the sealing assemblies is lost because of the loss of the residual contact pressure, produced by
the manufacturing process, as the effects of creep and relaxation, or due to the emergence
cracks in the tubes at the transition zone due to mechanical and thermal loads, under the effect
of stress corrosion cracking (SCC). The vibrations generated by the fluid flow could also
introduce a mechanism of additional rupture.
At first, the research was interested in the expansion process, and then they were oriented
toward the axial resistance and it was only later that they were oriented to the residual stresses
and degradation mechanisms of the assembly.Several models have been developed to predict the residual contact pressure at the end of the
expansion process: one based on an assumption that the assembly model is elastic perfectly
plastic, another taking into account the hardening materials by a constitutive bilinear law, etc.
All these models have their strengths and weaknesses.
Recently a new analytical model has been developed introducing the effect on the creep on
the relaxation of the residual stress and its effect on the residual contact pressure at the end of
the expansion process and in service."
Diplôme : Magistère En ligne : ../theses/gmecanique/MOH6569.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=9687 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité MOH/6569 MOH/6569 Thèse Bibliothèque principale Thèses Disponible
Titre : Modelisation de la deformation progessive des aciers inoxydables austenitiques sous differents chargements Type de document : texte imprimé Auteurs : Fatiha Boussalih, Auteur ; Salim Meziani, Directeur de thèse Mention d'édition : 08/01/2020 Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2020 Importance : 150 f. Format : 30 cm. Note générale : 1 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
Génie MécaniqueTags : G. Mécanique: Construction Elastoplastique Rochet Sur-écrouissage Chaboche Chargement cyclique Ecrouissage adoucissement cyclique elastoplasticity Ratcheting over-hardening cyclic loading cyclic hardening cyclic softening multiaxial uniaxial ضغط الإجهاد روشيت تصلب الصليب شابوش حمولة متعددة حمولة احادية Index. décimale : 620 Génie Mécanique Résumé :
This thesis is in addition to the research work that deals with the Ratcheting phenomenon and the elastoplastic behavior of 304L austenitic stainless steel at room temperature under the effect of cyclic loading. Two investigations have been performed in order to analyze the behavior of the material. ▪ The first relates to conventional strain-compression type tests with imposed strain providing information relating to the hardening / softening of the steel. Cyclic tests carried out in amplitudes of increasing strain with a proportional loading path. The intervention of the non-zero average stress plays a primordial role in the appearance of the ratcheting phenomena. Under the effect of the same conditions, imposed stress tests allow the characterization of this phenomenon leading to different cyclic behaviors and to the Let's examine some form of hysteresis loops. The results of the simulation show that Ratcheting is governed by the intensity of the mean stress. ▪ The second investigation was to analyze different cyclic contributions under the effect of multiaxial tension -compression / torsion under strain and stress loading imposed with a cross loading path. This investigation has three objectives: 1. A study of the phenomenon of over-hardening due to the effect of the second loading and to the 2D Ratcheting phenomenon forming the (Cross Hardening) on the evolution of hysteresis buckles of deformations and constraints. 2. A comparative study between 1D and 2D Ratcheting around the same non-zero average stress shows that the speed of the 2D Ratcheting is more accelerated than the 1D Ratcheting. 3. A study of the effect of primary and secondary loading at increasing amplitudes on 2D Ratcheting. The set of simulations is done with the calculation code Zebulon with the choice of Chaboche'sDiplôme : Doctorat en sciences En ligne : ../theses/gmecanique/BOU7607.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11443 Modelisation de la deformation progessive des aciers inoxydables austenitiques sous differents chargements [texte imprimé] / Fatiha Boussalih, Auteur ; Salim Meziani, Directeur de thèse . - 08/01/2020 . - جامعة الإخوة منتوري قسنطينة, 2020 . - 150 f. ; 30 cm.
1 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Génie MécaniqueTags : G. Mécanique: Construction Elastoplastique Rochet Sur-écrouissage Chaboche Chargement cyclique Ecrouissage adoucissement cyclique elastoplasticity Ratcheting over-hardening cyclic loading cyclic hardening cyclic softening multiaxial uniaxial ضغط الإجهاد روشيت تصلب الصليب شابوش حمولة متعددة حمولة احادية Index. décimale : 620 Génie Mécanique Résumé :
This thesis is in addition to the research work that deals with the Ratcheting phenomenon and the elastoplastic behavior of 304L austenitic stainless steel at room temperature under the effect of cyclic loading. Two investigations have been performed in order to analyze the behavior of the material. ▪ The first relates to conventional strain-compression type tests with imposed strain providing information relating to the hardening / softening of the steel. Cyclic tests carried out in amplitudes of increasing strain with a proportional loading path. The intervention of the non-zero average stress plays a primordial role in the appearance of the ratcheting phenomena. Under the effect of the same conditions, imposed stress tests allow the characterization of this phenomenon leading to different cyclic behaviors and to the Let's examine some form of hysteresis loops. The results of the simulation show that Ratcheting is governed by the intensity of the mean stress. ▪ The second investigation was to analyze different cyclic contributions under the effect of multiaxial tension -compression / torsion under strain and stress loading imposed with a cross loading path. This investigation has three objectives: 1. A study of the phenomenon of over-hardening due to the effect of the second loading and to the 2D Ratcheting phenomenon forming the (Cross Hardening) on the evolution of hysteresis buckles of deformations and constraints. 2. A comparative study between 1D and 2D Ratcheting around the same non-zero average stress shows that the speed of the 2D Ratcheting is more accelerated than the 1D Ratcheting. 3. A study of the effect of primary and secondary loading at increasing amplitudes on 2D Ratcheting. The set of simulations is done with the calculation code Zebulon with the choice of Chaboche'sDiplôme : Doctorat en sciences En ligne : ../theses/gmecanique/BOU7607.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11443 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOU/7607 BOU/7607 Thèse Bibliothèque principale Thèses Disponible
