CONTRIBUTION A L'ETUDE EXPERIMENTALE, THEORIQUE ET NUMERIQUE DU COMPORTEMENT MECANIQUE FIN D'ASSEMBLAGES COLLES DU TYPE ESCALIER SIMPLE SOLLICITES A LA TRACTION PDF Download
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Author: Abdellatif Bensai͏̈d
Publisher:
ISBN:
Category :
Languages : fr
Pages :
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NOTRE TRAVAIL EST CONSACRE A L'ANALYSE EXPERIMENTALE, THEORIQUE ET NUMERIQUE PAR ELEMENTS FINIS, DU COMPORTEMENT MECANIQUE FIN DE L'ASSEMBLAGE COLLE A SIMPLE RECOUVREMENT DU TYPE ESCALIER SIMPLE, SOLLICITE A LA TRACTION. LA METHODE EXPERIMENTALE (EXTENSOMETRIE) PERMET DE METTRE EN EVIDENCE UNE PHASE ELASTIQUE, PUIS L'AMORCAGE PROGRESSIF EN REGIME STABLE DES MICROFISSURES DANS L'ADHESIF ET ENFIN LA PROPAGATION RAPIDE EN REGIME INSTABLE DES CRIQUES AU VOISINAGE DE LA RUPTURE ULTIME DE L'ECHANTILLON TESTE. UNE MODELISATION ANALYTIQUE SIMPLIFIEE DU COMPORTEMENT MECANIQUE DE L'ASSEMBLAGE EST DEVELOPPEE A L'AIDE DES HYPOTHESES DE LA RESISTANCE DES MATERIAUX, EN CONSIDERANT QUE L'ADHESIF EST SOLLICITE AU CISAILLEMENT ET AU DECOLLEMENT, ET LES SUBSTRATS EN TRACTION ET FLEXION COMBINEES. CEPENDANT LE CHAMP DE CONTRAINTES OBTENU NE VERIFIE PAS TOUTES LES CONDITIONS AUX LIMITES AUX EXTREMITES DU RECOUVREMENT. POUR REMEDIER A CE PROBLEME, UNE METHODOLOGIE INTERESSANTE EST PRESENTEE PERMETTANT D'AMELIORER LA THEORIE CLASSIQUE EN TENANT COMPTE DES EFFETS DE BORDS POUR MIEUX MODELISER LE CHAMP DE CONTRAINTES DANS LES REGIONS DES EXTREMITES. LA REPARTITION DES CONTRAINTES DANS LE JOINT ET LES SUBSTRATS A ETE DETERMINEE DANS LE DOMAINE ELASTIQUE PAR LA METHODE DES ELEMENTS FINIS. L'ADEQUATION SATISFAISANTE OBTENUE PAR LA CONFRONTATION DES METHODES ANALYTIQUE ET NUMERIQUE, AVEC LES RESULTATS EXPERIMENTAUX, PERMET D'ENVISAGER L'OPTIMISATION DE L'ASSEMBLAGE CONSIDERE EN VUE D'UNE RESISTANCE MAXIMALE
Author: Abdellatif Bensai͏̈d
Publisher:
ISBN:
Category :
Languages : fr
Pages :
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Book Description
NOTRE TRAVAIL EST CONSACRE A L'ANALYSE EXPERIMENTALE, THEORIQUE ET NUMERIQUE PAR ELEMENTS FINIS, DU COMPORTEMENT MECANIQUE FIN DE L'ASSEMBLAGE COLLE A SIMPLE RECOUVREMENT DU TYPE ESCALIER SIMPLE, SOLLICITE A LA TRACTION. LA METHODE EXPERIMENTALE (EXTENSOMETRIE) PERMET DE METTRE EN EVIDENCE UNE PHASE ELASTIQUE, PUIS L'AMORCAGE PROGRESSIF EN REGIME STABLE DES MICROFISSURES DANS L'ADHESIF ET ENFIN LA PROPAGATION RAPIDE EN REGIME INSTABLE DES CRIQUES AU VOISINAGE DE LA RUPTURE ULTIME DE L'ECHANTILLON TESTE. UNE MODELISATION ANALYTIQUE SIMPLIFIEE DU COMPORTEMENT MECANIQUE DE L'ASSEMBLAGE EST DEVELOPPEE A L'AIDE DES HYPOTHESES DE LA RESISTANCE DES MATERIAUX, EN CONSIDERANT QUE L'ADHESIF EST SOLLICITE AU CISAILLEMENT ET AU DECOLLEMENT, ET LES SUBSTRATS EN TRACTION ET FLEXION COMBINEES. CEPENDANT LE CHAMP DE CONTRAINTES OBTENU NE VERIFIE PAS TOUTES LES CONDITIONS AUX LIMITES AUX EXTREMITES DU RECOUVREMENT. POUR REMEDIER A CE PROBLEME, UNE METHODOLOGIE INTERESSANTE EST PRESENTEE PERMETTANT D'AMELIORER LA THEORIE CLASSIQUE EN TENANT COMPTE DES EFFETS DE BORDS POUR MIEUX MODELISER LE CHAMP DE CONTRAINTES DANS LES REGIONS DES EXTREMITES. LA REPARTITION DES CONTRAINTES DANS LE JOINT ET LES SUBSTRATS A ETE DETERMINEE DANS LE DOMAINE ELASTIQUE PAR LA METHODE DES ELEMENTS FINIS. L'ADEQUATION SATISFAISANTE OBTENUE PAR LA CONFRONTATION DES METHODES ANALYTIQUE ET NUMERIQUE, AVEC LES RESULTATS EXPERIMENTAUX, PERMET D'ENVISAGER L'OPTIMISATION DE L'ASSEMBLAGE CONSIDERE EN VUE D'UNE RESISTANCE MAXIMALE
Author: Don Montague
Publisher: Taylor & Francis
ISBN: 9780419199106
Category : Architecture
Languages : en
Pages : 472
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Book Description
This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.
Author: Stuart Hill
Publisher: Birkhäuser
ISBN: 3034863101
Category : Science
Languages : en
Pages : 364
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Book Description
Author: Sofiane Amziane
Publisher: John Wiley & Sons
ISBN: 111857706X
Category : Technology & Engineering
Languages : en
Pages : 332
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Book Description
Using plant material as raw materials for construction is a relatively recent and original topic of research. This book presents an overview of the current knowledge on the material properties and environmental impact of construction materials made from plant particles, which are renewable, recyclable and easily available. It focuses on particles and as well on fibers issued from hemp plant, as well as discussing hemp concretes. The book begins by setting the environmental, economic and social context of agro-concretes, before discussing the nature of plant-based aggregates and binders. The formulation, implementation and mechanical behavior of such building materials are the subject of the following chapters. The focus is then put upon the hygrothermal behavior and acoustical properties of hempcrete, followed by the use of plant-based concretes in structures. The book concludes with the study of life-cycle analysis (LCA) of the environmental characteristics of a banked hempcrete wall on a wooden skeleton. Contents 1. Environmental, Economic and Social Context of Agro-Concretes, Vincent Nozahic and Sofiane Amziane. 2. Characterization of Plant-Based Aggregates. Vincent Picandet. 3. Binders, Gilles Escadeillas, Camille Magniont, Sofiane Amziane and Vincent Nozahic. 4. Formulation and Implementation, Christophe Lanos, Florence Collet, Gérard Lenain and Yves Hustache. 5. Mechanical Behavior, Laurent Arnaud, Sofiane Amziane, Vincent Nozahic and Etienne Gourlay. 6. Hygrothermal Behavior of Hempcrete, Laurent Arnaud, Driss Samri and Étienne Gourlay. 7. Acoustical Properties of Hemp Concretes, Philippe Glé, Emmanuel Gourdon and Laurent Arnaud. 8. Plant-Based Concretes in Structures: Structural Aspect – Addition of a Wooden Support to Absorb the Strain, Philippe Munoz and Didier Pipet. 9. Examination of the Environmental Characteristics of a Banked Hempcrete Wall on a Wooden Skeleton, by Lifecycle Analysis: Feedback on the LCA Experiment from 2005, Marie-Pierre Boutin and Cyril Flamin. About the Authors Sofiane Amziane is Professor and head of the Civil Engineering department at POLYTECH Clermont-Ferrand in France. He is also in charge of the research program dealing with bio-based building materials at Blaise Pascal University (Institut Pascal, Clermont Ferrand, France). He is the secretary of the RILEM Technical Committee 236-BBM dealing with bio-based building materials and the author or co-author of over one hundred papers in scientific journals such as Cement and Concrete Research, Composite Structures or Construction Building Materials as well as international conferences. Laurent Arnaud is a Bridges, Waters and Forestry Engineer (Ingénieur des Ponts, Eaux et Forêts) and researcher at Joseph Fourier University in Grenoble, France. He is also Professor at ENTPE (Ecole Nationale des Travaux Publics de l’Etat). Trained in the field of mechanical engineering, his research has been directed toward the characterization and development of new materials for civil engineering and construction. He is head of the international committee at RILEM – BBM, as well as the author of more than one hundred publications, and holder of an international invention patent.
Author: Damien Andre
Publisher: John Wiley & Sons
ISBN: 1848217722
Category : Technology & Engineering
Languages : en
Pages : 212
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Book Description
Complex behavior models (plasticity, cracks, visco elascticity) face some theoretical difficulties for the determination of the behavior law at the continuous scale. When homogenization fails to give the right behavior law, a solution is to simulate the material at a meso scale in order to simulate directly a set of discrete properties that are responsible of the macroscopic behavior. The discrete element model has been developed for granular material. The proposed set shows how this method is capable to solve the problem of complex behavior that are linked to discrete meso scale effects. The first book solves the local problem, the second one presents a coupling approach to link the structural effects to the local ones, this third book presents the software workbench that includes all the theoretical developments.
Author: Bernard Cambou
Publisher: Springer
ISBN: 370912526X
Category : Technology & Engineering
Languages : en
Pages : 403
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Book Description
This book presents a complete and comprehensive analysis of the behaviour of granular materials including the description of experimental results, the different ways to define the global behaviour from local phenomena at the particle scale, the various modellings which can be used for a D.E.M. analysis to solve practical problems and finally the analysis of strain localisation. The concepts developed in this book are applicable to many kinds of granular materials considered in civil, mechanical or chemical engineering.
Author: John Broome
Publisher: DC Comics
ISBN:
Category : Comics & Graphic Novels
Languages : en
Pages : 28
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Book Description
Batman has premonitions of forthcoming crimes and goes up against Mr. Esper, a robber and magician.
Author: tucson Symposium on the use of analog and digital computers in hydrology
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: William A. Thomas
Publisher: Springer Science & Business Media
ISBN: 1468416987
Category : Technology & Engineering
Languages : en
Pages : 253
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Book Description
Researchers and agencies collect reams of objective data and authors publish volumes of subjective prose in attempts to explain what is meant by environmental quality. Still, we have no universally recognized methods for combining our quantitative measures with our qualitative concepts of environ ment. Not all of our environmental goals should be reduced to mere numbers, but many of them can be; and without these quantitative terms, we have no way of defining our present position nor of selecting positions we wish to attain on any logically established scale of environmen tal values. Stated simply, in our zeal to measure our environment we often forget that masses of numbers describing a system are insufficient to understand it or to be used in selecting goals and priorities for expending our economic and human resources. Attempts at quantitatively describing environmental quality, rather than merely measuring different environmental variables, are relatively recent. This condensing of data into the optimum number of terms with maximum information content is a truly interdisciplinary challenge. When Oak Ridge National Laboratory initiated its Environmental Program in early 1970 under a grant from the National Science Foundation, the usefulness of environmental indicators in assessing the effects of technology was included as one of the initial areas for investigation. James L. Liverman, through his encouragement and firm belief that these indicators are indispensable if we are to resolve our complex environmental problems, deserves much of the credit for the publication of this book.
Author: Michael Panik
Publisher: CRC Press
ISBN: 1420091980
Category : Mathematics
Languages : en
Pages : 832
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Book Description
Regression Modeling: Methods, Theory, and Computation with SAS provides an introduction to a diverse assortment of regression techniques using SAS to solve a wide variety of regression problems. The author fully documents the SAS programs and thoroughly explains the output produced by the programs.The text presents the popular ordinary least square
