Élasticité et plasticité PDF Download

Author: FRANÇOIS
Publisher: Lavoisier
ISBN: 2746243229
Category : Elasticity
Languages : en
Pages : 510

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Book Description
Les avancées techniques requièrent une excellente maîtrise des matériaux utilisés. Le défi est de mieux comprendre leur comportement mécanique et plus particulièrement les relations entre leurs micro-structures et leurs propriétés à l'échelle macroscopique. Cet ouvrage apporte les éléments pour relever ce défi. Partant des mécanismes de déformation, il remonte aux lois de comportement macroscopique en cherchant à établir des relations quantitatives, en tout cas à révéler les phénomènes physiques qui sous-tendent les comportements rhéologiques. Les auteurs ont inclus les développements les plus récents, notamment sur les matériaux hétérogènes (alliages métalliques, polymères, composites). Chacun des chapitres est consacré à une grande classe de comportement : élastique puis plastique dans ce premier volume , comportement viscoélastique, comportement viscoplastique, endommagements, dans le second volume (on y trouvera en outre des notions de mécanique de la rupture et de mécanique du contact). Les outils de base (mécanique des milieux continus, cristallographie, changements de phase) sont décrits en annexes. On trouvera également, de nombreux exercices en fin de chapitres, pour la bonne compréhension des sujets traités. Une illustration abondante facilite la lecture de l'ouvrage. Comportement mécanique des matériaux est le fruit du DEA "Mécanique et Matériaux" de la région parisienne. Il s'adresse aussi aux élèves-ingénieurs, ingénieurs et chercheurs. Les développements mathématiques y sont d'un accès facile. Les réelles difficultés, dont la maîtrise n'est pas exempte d'aspects passionnants, résident dans les fréquents changements d'échelle et dans le sens physique auquel il est fait appel.

Author: Eduardo A. de Souza Neto
Publisher: John Wiley & Sons
ISBN: 1119964547
Category : Science
Languages : en
Pages : 718

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Book Description
The subject of computational plasticity encapsulates the numerical methods used for the finite element simulation of the behaviour of a wide range of engineering materials considered to be plastic – i.e. those that undergo a permanent change of shape in response to an applied force. Computational Methods for Plasticity: Theory and Applications describes the theory of the associated numerical methods for the simulation of a wide range of plastic engineering materials; from the simplest infinitesimal plasticity theory to more complex damage mechanics and finite strain crystal plasticity models. It is split into three parts - basic concepts, small strains and large strains. Beginning with elementary theory and progressing to advanced, complex theory and computer implementation, it is suitable for use at both introductory and advanced levels. The book: Offers a self-contained text that allows the reader to learn computational plasticity theory and its implementation from one volume. Includes many numerical examples that illustrate the application of the methodologies described. Provides introductory material on related disciplines and procedures such as tensor analysis, continuum mechanics and finite elements for non-linear solid mechanics. Is accompanied by purpose-developed finite element software that illustrates many of the techniques discussed in the text, downloadable from the book’s companion website. This comprehensive text will appeal to postgraduate and graduate students of civil, mechanical, aerospace and materials engineering as well as applied mathematics and courses with computational mechanics components. It will also be of interest to research engineers, scientists and software developers working in the field of computational solid mechanics.

Author: Lesca Nicolas
Publisher: Lavoisier
ISBN: 2746242362
Category :
Languages : en
Pages : 510

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Book Description
L'objet de la veille anticipative, pour les entreprises et les collectivités, est la gestion de l'information de leur environnement extérieur afin d'anticiper les changements importants actuels et futurs pour leur devenir. Cet ouvrage synthétise l'état des recherches sur la veille anticipative et met en évidence leurs limites. Il expose les problématiques auxquelles les entreprises et les collectivités sont confrontées dans leurs démarches de veille et apporte les éléments théoriques et méthodologiques pour aider les praticiens dans leur réflexion sur la mise en place, l'optimisation et l'évaluation de leurs pratiques. Construit comme un dialogue entre la pratique et la théorie, ce livre permet de s'approprier de façon concrète les concepts théoriques et les méthodologies de veille et s'interroge sur de nouveaux axes de recherche.

Author: Gérard A. Maugin
Publisher: Cambridge University Press
ISBN: 9780521397803
Category : Mathematics
Languages : en
Pages : 376

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Book Description
This book concentrates upon the mathematical theory of plasticity and fracture as opposed to the physical theory of these fields, presented in the thermomechanical framework.

Author: J. Kravtchenko
Publisher: Springer Science & Business Media
ISBN: 364246047X
Category : Science
Languages : en
Pages : 518

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Book Description
For a long period Soil Mechanics has remained at the semi-empirica stage, and only a few decades ago it has shown a tendency to become a fundamental science. However, this evolution is taking place slowly; in spite of the efforts of numerous research scientists, the very complex rheological laws of soils are still not well known. Even if these laws were elucidated, it would take a long time still to deduce simple rules from them for reliable and convenient use in current practical engineer ing. In the pursuit of these distant aims - and of others more imme diate - fundamental research and applied research are very active, both in Rheology and Soil Mechanics. The complexity of the problems to be solved should incite the laboratory researchers and the engineers to a continuous collaboration. Everyone acknowledges the advantage of these connections although aware of the difficulty of realizing this wish. However, contacts are being made little by little between the repre sentatives of the different branches of Rheology and Soil Mechanics, to the great benefit of science. The bureau of the International Union of Theoretical and Applied Mechanics (IUTAM), aware of the importance of these two associat ed fields of mechanics, considered it possible to accelerate the natural and necessary processus of their interpenetration by organizing in Grenoble, from 1st to 8th April 1964 an International Symposium on Rheology and Soil Mechanics.

Author: Nenad Bicanic
Publisher: CRC Press
ISBN: 1439859574
Category : Technology & Engineering
Languages : en
Pages : 1734

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Book Description
Since 1984 the EURO-C conference series (Split 1984, Zell am See 1990, Innsbruck 1994, Badgastein 1998, St Johann im Pongau 2003, Mayrhofen 2006, Schladming 2010) has provided a forum for academic discussion of the latest theoretical, algorithmic and modelling developments associated with computational simulations of concrete and concrete structure

Author: Koichi Hashiguchi
Publisher: Springer
ISBN: 331948821X
Category : Science
Languages : en
Pages : 802

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Book Description
This book is the standard text book of elastoplasticity in which the elastoplasticity theory is comprehensively described from the conventional theory for the monotonic loading to the unconventional theory for the cyclic loading behavior. Explanations of vector-tensor analysis and continuum mechanics are provided first as a foundation for elastoplasticity theory, covering various strain and stress measures and their rates with their objectivities. Elastoplasticity has been highly developed by the creation and formulation of the subloading surface model which is the unified fundamental law for irreversible mechanical phenomena in solids. The assumption that the interior of the yield surface is an elastic domain is excluded in order to describe the plastic strain rate due to the rate of stress inside the yield surface in this model aiming at the prediction of cyclic loading behavior, although the yield surface enclosing the elastic domain is assumed in all the elastoplastic models other than the subloading surface model. Then, the plastic strain rate develops continuously as the stress approaches the yield surface, providing the advantages: 1) The tangent modulus changes continuously, 2) The yield judgment whether the stress reaches the yield surface is not required, 3) The stress is automatically attracted to the yield surface even when it goes out from the yield surface by large loading increments in numerical calculation and 4) The finite strain theory based on the multiplicative decomposition of deformation gradient tensor is formulated exactly. Consequently, the monotonic, the cyclic, the non-proportional loading behaviors for wide classes of materials including soils, rocks and concretes in addition to metals can be described rigorously by the subloading surface model. Further, the viscoplastic constitutive equations in a general rate from the quasi-static to the impact loadings are described, and constitutive equations of friction behavior and its application to the prediction of stick-slip phenomena, etc. are also described in detail. In addition, the return-mapping algorithm, the consistent tangent modulus, etc. are explained for the numerical analyses. Further, the damage, the phase-transformation and the crystal plasticity models are also described in brief. All of them are based on the subloading surface model. The elastoplasticity analysis will be advanced steadily based on the subloading surface model.

Author: Dominique Francois
Publisher: John Wiley & Sons
ISBN: 1118624076
Category : Technology & Engineering
Languages : en
Pages : 269

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Book Description
The mechanical tests presented in this book are essential for determining the basic properties of the materials used. Areas covered include elasticity, tensile and compression tests, hardness, endurance tests and dynamic tests.

Author: Jiann-Wen Woody Ju
Publisher: Elsevier
ISBN: 0080530230
Category : Technology & Engineering
Languages : en
Pages : 557

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Book Description
This book contains thirty peer-reviewed papers that are based on the presentations made at the symposium on "Damage Mechanics in Engineering Materials" on the occasion of the Joint ASME/ASCE/SES Mechanics Conference (McNU97), held in Evanston, Illinois, June 28-July 2, 1997. The key area of discussion was on the constitutive modeling of damage mechanics in engineering materials encompassing the following topics: macromechanics/micromechanical constitutive modeling, experimental procedures, numerical modeling, inelastic behavior, interfaces, damage, fracture, failure, computational methods. The book is divided into six parts: Study of damage mechanics. Localization and damage. Damage in brittle materials. Damage in metals and metal matrix composites. Computational aspects of damage models. Damage in polymers and elastomers.

Author: Gerard Ballivy
Publisher: CRC Press
ISBN: 9789054105459
Category : Technology & Engineering
Languages : en
Pages : 512

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Book Description
Pressuremeter testing activities are of great interest for scientists and engineers concerned with the mechanical behaviour of civil engineering materials. The proceedings include the first Menard Lecture presented by Professor Branko Ladanyi and 57 technical papers from 16 countries. They are related to the application of pressuremeter testing to granular and alluvial soils, clay, rock, concrete and permafrost, and geotechnical design. It also includes a session on technological developments in the design, fabrication and installation of pressuremeters.