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Contribution A La Conception Optimisee Des Structures En Materiaux Composites Stratifies
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Book Synopsis CONTRIBUTION A LA CONCEPTION OPTIMISEE DES STRUCTURES EN MATERIAUX COMPOSITES STRATIFIES by : HAMID.. SABZEVARI
Download or read book CONTRIBUTION A LA CONCEPTION OPTIMISEE DES STRUCTURES EN MATERIAUX COMPOSITES STRATIFIES written by HAMID.. SABZEVARI and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: DANS CETTE ETUDE, SONT PROPOSEES DEUX METHODOLOGIES GENERALES D'OPTIMISATION DES STRUCTURES EN MATERIAUX COMPOSITES STRATIFIES (METHODOLOGIE D'OPTIMISATION MULTI-NIVEAUX ET METHODOLOGIE D'OPTIMISATION APPROCHEE) QUI PRENNENT EN COMPTE, COMME VARIABLES D'OPTIMISATION, L'ORIENTATION DES FIBRES ET L'EPAISSEUR DES COUCHES. DANS LA METHODOLOGIE D'OPTIMISATION MULTI-NIVEAUX ON DEFINIT LE NIVEAU DES SOUS-STRUCTURES ET CELUI DE LA STRUCTURE COMPLETE. ON MINIMISE LA MASSE EN FONCTION DE L'EPAISSEUR DE CHAQUE COUCHE. LES CONTRAINTES D'OPTIMISATION PORTENT SUR L'ORIENTATION DES FIBRES ET L'EPAISSEUR DE CHAQUE COUCHE (LE CRITERE DE CONVERGENCE GLOBALE EST CONTROLE: S'IL N'EST PAS SATISFAIT, ON EFFECTUE UNE OPTIMISATION DE LA STRUCTURE ENTIERE EN PRENANT POUR SEULE VARIABLE D'OPTIMISATION L'EPAISSEUR DES COUCHES DE CHAQUE SOUS-STRUCTURE). LA METHODOLOGIE D'OPTIMISATION APPROCHEE EVITE L'OPTIMISATION AU NIVEAU DE LA STRUCTURE ENTIERE. ELLE EST BASEE SUR UN CRITERE D'OPTIMALITE OU TOUTES LES SOUS-STRUCTURES ATTEIGNENT SIMULTANEMENT LA RUPTURE POUR AU MINIMUM UN CAS DE CHARGE. LA MOYENNE DES EFFORTS ET DES MOMENTS RESULTANTS EST CALCULEE ET PERMET D'OPTIMISER LES SOUS-STRUCTURES A L'ITERATION SUIVANTE. CES DEUX METHODOLOGIES SONT APPLIQUEES A DIFFERENTES STRUCTURES EN MATERIAUX COMPOSITES STRATIFIES. ON MONTRE QUE LA CONVERGENCE GLOBALE EST ATTEINTE. LES STRUCTURES OPTIMALES, QUOIQUE SORTANT DES HABITUDES INDUSTRIELLES ACTUELLES, SONT REALISABLES. LA COMPARAISON DE DIFFERENTS CRITERES DE RUPTURE PERMET DE RETENIR LE CRITERE DE TSAI-WU. LA METHODE DE LA PROGRAMMATION LINEAIRE RECURSIVE AVEC LIMITES MOBILES EST PREFEREE A UNE METHODE DE FONCTION DE PENALITE CAR ELLE DONNE DES RESULTATS PLUS RAPIDES ET NECESSITE MOINS DE CALCUL STRUCTURAL A CHAQUE ITERATION. UNE VERIFICATION EXPERIMENTALE DES TRAVAUX ENUMERES CI-DESSUS A ETE EFFECTUEE METTANT EN VALEUR UNE CORRESPONDANCE CORRECTE ENTRE LES RESULTATS EXPERIMENT
Book Synopsis A general strategy for the optimal design of laminated composites by the polar-genetic method by : Mohammad Réza Ahmadian
Download or read book A general strategy for the optimal design of laminated composites by the polar-genetic method written by Mohammad Réza Ahmadian and published by . This book was released on 2007 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis, we introduce a new global approach to the optimal design of laminated composites. This method uses the polar representation of plane tensors and the design of laminates is formulated as a constrained optimization problem without any pre-defined simplifying hypothesis. The design variables are all the constitutive parameters of the laminate. The first part of the thesis concerns the creation of a suitable genetic algorithm, BIANCA, able to handle any constrained/unconstrained and multi-objective optimization problems, and which is rich in its architecture and information representation.The genetic algorithm BIANCA is successfully applied to the resolution of optimal design problems for composite laminates, as they are formulated by our polar approach. Several practical cases are treated, and through an extended series of examples, we show the effectiveness and robustness of the polar-genetic method for the optimal design of composite laminates.
Book Synopsis Modelling of High Velocity Impact on Composite Materials for Airframe Structures Application by : Louis Gauthier
Download or read book Modelling of High Velocity Impact on Composite Materials for Airframe Structures Application written by Louis Gauthier and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Composite Materials by : Jean-Marie Berthelot
Download or read book Composite Materials written by Jean-Marie Berthelot and published by Springer. This book was released on 2013-02-06 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanical engineering, an engineering discipline borne of the needs of the in dustrial revolution, is once again asked to do its substantial share in the call for industrial renewal. The general call is urgent as we face profound issues of produc tivity and competitiveness that require engineering solutions, among others. The Mechanical Engineering Series features graduate texts and research monographs intended to address the need for information in contemporary areas of mechanical engineering. The series is conceived as a comprehensive one that covers a broad range of concentrations important to mechanical engineering graduate education and re search. We are fortunate to have a distinguished roster of consulting editors on the advisory board, each an expert in one of the areas of concentration. The names of the consulting editors are listed on the next page of this volume. The areas of concentration are applied mechanics, biomechanics, computational mechan ics, dynamic systems and control, energetics, mechanics of materials, processing, thermal science, and tribology.
Book Synopsis Matériaux composites by : Jean-Marie Berthelot
Download or read book Matériaux composites written by Jean-Marie Berthelot and published by Tec & Doc Lavoisier. This book was released on 2005 with total page 645 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthèse unanimement reconnue, Matériaux Composites apporte l'ensemble des éléments nécessaires à une bonne compréhension du comportement mécanique des matériaux et structures composites. Dans ce traité, les différentes parties de l'ouvrage ont été développées de manière à aboutir à une continuité des concepts et théories, fournissant ainsi une approche fondamentale unifiée. Après avoir présenté la constitution puis la mise en œuvre des matériaux composites, l'ouvrage développe progressivement les outils nécessaires à la modélisation du comportement mécanique des structures en matériaux composites stratifiés et sandwichs. Il aborde ensuite les problèmes de dimensionnement des structures montrant comment les outils introduits permettent de modéliser le comportement mécanique. Le contenu et la progression de l'ouvrage ont été conçus avec quatre objectifs principaux : considérer le matériau composite comme un matériau traditionnel ; intégrer l'apport de la conception assistée par ordinateur dans la résolution des problèmes de dimensionnement des structures ; aborder les difficultés de manière progressive afin de faciliter l'accès du lecteur aux divers concepts introduits ; confronter la modélisation avec le comportement réel des matériaux et des structures. Cette quatrième édition, entièrement actualisée, bénéficie de la réalisation de l'ouvrage Composite Materials, de l'auteur. Des exercices ont été ajoutés à la plupart des chapitres. Rigoureux et didactique, Matériaux Composites constitue l'ouvrage de référence des étudiants (2e et 3e cycles), ingénieurs, chercheurs et techniciens supérieurs.
Book Synopsis Contribution à la modèlisation par homogénéisation de composites à base d'alliage à mémoire de forme by : Holitiana Herzog
Download or read book Contribution à la modèlisation par homogénéisation de composites à base d'alliage à mémoire de forme written by Holitiana Herzog and published by . This book was released on 2004 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans le cadre du développement d'un outil d'aide à la conception optimale de structures adaptatives à base d'alliage à mémoire de forme, un modèle de comportement pseudoélastique est développé. Basé sur l'hypothèse de deux processus dissipatifs normaux, ce modèle permet un traitement unifié de la pseudoélasticité des matériaux à transitions de phase. L'intégration de ces matériaux au sein de structures comme élément de commande nécessite l'utilisation, dans le cadre d'un calcul par éléments finis, d'une méthode d'homogénéisation spécifique permettant la prise en compte du comportement non-linéaire des constituants. Cette démarche permet de simplifier la qualification des matériaux adaptatifs.
Book Synopsis CONTRIBUTION A LA CONCEPTION ET A L'ETUDE DE STRUCTURES COMPOSITES THERMOELASTIQUES by : Gildas L'Hostis
Download or read book CONTRIBUTION A LA CONCEPTION ET A L'ETUDE DE STRUCTURES COMPOSITES THERMOELASTIQUES written by Gildas L'Hostis and published by . This book was released on 1996 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'ETUDE DE STRUCTURES COMPOSITES A HAUTE PERFORMANCE, CONSTITUE UNE ETAPE ESSENTIELLE D'AIDE A LA CONCEPTION ET A L'OPTIMISATION DE PIECES INDUSTRIELLES, D'AUTANT PLUS QUE LEUR UTILISATION N'A CESSE DE CROITRE DEPUIS DEJA QUELQUES ANNEES ET CECI DANS DE NOMBREUX DOMAINES TECHNOLOGIQUES, NOTAMMENT, EN CE QUI CONCERNE LES PROBLEMES D'ISOLATION ET DE PROTECTION THERMIQUE. MALHEUREUSEMENT, LA GRANDE HETEROGENEITE DE CES MATERIAUX, REND IMPOSSIBLE, TOUTE TENTATIVE DE CALCUL DIRECT. SE POSE ALORS LA NECESSITE DE DEVELOPPER DES OUTILS D'AIDE A L'ANALYSE ET A LA CONCEPTION QUI PERMETTENT, DE FAIRE LA PART ENTRE LES PROPRIETES D'ISOLATION ET DE RESISTANCE MECANIQUE PUIS ENSUITE, D'ANALYSER LES DIFFERENTS PHENOMENES INTERVENANT AU SEIN DE CES MATERIAUX QUAND CEUX-CI SONT SOUMIS A DES CHARGEMENTS THERMOMECANIQUES. POUR REALISER CES OBJECTIFS, IL EST CLASSIQUE DE SUBSTITUER AU MATERIAU COMPOSITE FORTEMENT HETEROGENE, UN MATERIAU HOMOGENE DE COMPORTEMENT MECANIQUE MOYEN DEPENDANT DES PROPRIETES MECANIQUES ET DE LA GEOMETRIE DE SES DIFFERENTS CONSTITUANTS. C'EST LE PROCESSUS D'HOMOGENEISATION. L'UTILISATION DE LA METHODE D'HOMOGENEISATION DES MILIEUX A STRUCTURE PERIODIQUE FINE, DANS LE CADRE DE LA THERMOELASTICITE LINEAIRE PERMET D'ABOUTIR AUX EQUATIONS INSTATIONNAIRES, QUI REGISSENT LA REPONSE HOMOGENEISEE DU COMPOSITE CONSIDERE. CEPENDANT, CETTE DETERMINATION S'AVERE COUTEUSE EN TEMPS DE CALCUL, DES TECHNIQUES D'HOMOGENEISATION SIMPLIFIEES REPONDENT ALORS AUX IMPERATIFS DE CONSTRUCTION D'OUTILS NUMERIQUEMENT ECONOMIQUES. NOUS DEVELOPPONS DEUX TECHNIQUES PARTICULIERES, CONDUISANT A DES EXPRESSIONS QUASI-ANALYTIQUES DU COMPORTEMENT HOMOGENEISE APPROCHE. NOUS COMPARONS LES RESULTATS OBTENUS PAR LES DIVERSES METHODES. CETTE ETAPE NOUS PERMET POUR DEUX COMPOSITES PARTICULIERS, D'ANALYSER AU NIVEAU DU COMPORTEMENT HOMOGENEISE, L'INFLUENCE DES DIFFERENTS PARAMETRES GEOMETRIQUES ET MECANIQUES RELATIFS A LA DESCRIPTION MICROSCOPIQUE DE LEUR VOLUME ELEMENTAIRE REPRESENTATIF. ENFIN, NOUS MONTRONS QUE LE PROCESSUS D'HOMOGENEISATION MIS EN UVRE PERMET D'OBTENIR DES INFORMATIONS CONCERNANT LES GRANDEURS DEFINIES AU NIVEAU DE LA MICROSTRUCTURE CARACTERISTIQUE. CETTE DERNIERE ETAPE NOUS PERMET D'ETUDIER LES SUSCEPTIBILITES A L'ENDOMMAGEMENT DE CES STRUCTURES ET DE CONSTRUIRE LE PROBLEME RELATIF A SON EVOLUTION
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1988 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mechanical Identification of Composites by : A. Vautrin
Download or read book Mechanical Identification of Composites written by A. Vautrin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design Theory written by Pascal Le Masson and published by Springer. This book was released on 2017-04-06 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook presents the core of recent advances in design theory and its implications for design methods and design organization. Providing a unified perspective on different design methods and approaches, from the most classic (systematic design) to the most advanced (C-K theory), it offers a unique and integrated presentation of traditional and contemporary theories in the field. Examining the principles of each theory, this guide utilizes numerous real life industrial applications, with clear links to engineering design, industrial design, management, economics, psychology and creativity. Containing a section of exams with detailed answers, it is useful for courses in design theory, engineering design and advanced innovation management. "Students and professors, practitioners and researchers in diverse disciplines, interested in design, will find in this book a rich and vital source for studying fundamental design methods and tools as well as the most advanced design theories that work in practice". Professor Yoram Reich, Tel Aviv University, Editor-in-Chief, Research In Engineering Design. "Twenty years of research in design theory and engineering have shown that training in creative design is indeed possible and offers remarkably operational methods - this book is indispensable for all leaders and practitioners who wish to strengthen theinnovation capacity of their company." Pascal Daloz, Executive Vice President, Dassault Systèmes
Book Synopsis The Structural Conservation of Panel Paintings by : Kathleen Dardes
Download or read book The Structural Conservation of Panel Paintings written by Kathleen Dardes and published by Getty Publications. This book was released on 1998-10-29 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents the proceedings of an international symposium organized by the Getty Conservation Institute and the J. Paul Getty Museum. The first conference of its kind in twenty years, the symposium assembled an international group of conservators of painted panels, and gave them the opportunity to discuss their philosophies and share their work methods. Illustrated in color throughout, this volume presents thirty-one papers grouped into four topic areas: Wood Science and Technology, History of Panel-Manufacturing Techniques, History of the Structural Conservation of Panel Paintings, and Current Approaches to the Structural Conservation of Panel Paintings.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1988-04 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Composites and Their Properties by : Ning Hu
Download or read book Composites and Their Properties written by Ning Hu and published by BoD – Books on Demand. This book was released on 2012-08-22 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Composites are a class of material, which receives much attention not only because it is on the cutting edge of active material research fields due to appearance of many new types of composites, e.g., nanocomposites and bio-medical composites, but also because there are a great deal of promises for their potential applications in various industries ranging from aerospace to construction due to their various outstanding properties. This book mainly deals with fabrication and property characterization of various composites by focusing on the following topics: functional and structural nanocomposites, numerical and theoretical modelling of various damages in long fiber reinforced composites and textile composites, design, processing and manufacturing technologies and their effects on mechanical properties of composites, characterization of mechanical and physical properties of various composites, and metal and ceramic matrix composites. This book has been divided into five sections to cover the above contents.
Download or read book Composite Materials written by Daniel Gay and published by CRC Press. This book was released on 2007-04-25 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: Responding to the need for a single reference source on the design and applications of composites, Composite Materials: Design and Applications, Second Edition provides an authoritative examination of the composite materials used in current industrial applications and delivers much needed practical guidance to those working in this rapidly d
Book Synopsis Modeling, Identification and Control of Robots by : W. Khalil
Download or read book Modeling, Identification and Control of Robots written by W. Khalil and published by Butterworth-Heinemann. This book was released on 2004-07-01 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by two of Europe’s leading robotics experts, this book provides the tools for a unified approach to the modelling of robotic manipulators, whatever their mechanical structure. No other publication covers the three fundamental issues of robotics: modelling, identification and control. It covers the development of various mathematical models required for the control and simulation of robots. · World class authority· Unique range of coverage not available in any other book· Provides a complete course on robotic control at an undergraduate and graduate level
Book Synopsis Heat Transfer in Polymer Composite Materials by : Nicolas Boyard
Download or read book Heat Transfer in Polymer Composite Materials written by Nicolas Boyard and published by John Wiley & Sons. This book was released on 2016-03-28 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses general information, good practices and examples about thermo-physical properties, thermo-kinetic and thermo-mechanical couplings, instrumentation in thermal science, thermal optimization and infrared radiation.
Book Synopsis Introduction to Glass Science and Technology by : James E Shelby
Download or read book Introduction to Glass Science and Technology written by James E Shelby and published by Royal Society of Chemistry. This book was released on 2015-11-06 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a concise and inexpensive introduction for an undergraduate course in glass science and technology. The level of the book has deliberately been maintained at the introductory level to avoid confusion of the student by inclusion of more advanced material, and is unique in that its text is limited to the amount suitable for a one term course for students in materials science, ceramics or inorganic chemistry. The contents cover the fundamental topics of importance in glass science and technology, including glass formation, crystallization, phase separation and structure of glasses. Additional chapters discuss the most important properties of glasses, including discussion of physical, optical, electrical, chemical and mechanical properties. A final chapter provides an introduction to a number of methods used to form technical glasses, including glass sheet, bottles, insulation fibre, optical fibres and other common commercial products. In addition, the book contains discussion of the effects of phase separation and crystallization on the properties of glasses, which is neglected in other texts. Although intended primarily as a textbook, Introduction to Glass Science and Technology will also be invaluable to the engineer or scientist who desires more knowledge regarding the formation, properties and production of glass.
