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Author: THIERRY.. COUPEZ
Publisher:
ISBN:
Category :
Languages : fr
Pages : 242
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Book Description
DES CONDITIONS D'INCOMPRESSIBILITE INCREMENTALE NON LINEAIRE ET LINEARISEE SONT PROPOSEES DANS LE CHAPITRE 1. ELLES PERMETTENT D'ASSURER LA CONSERVATION DU VOLUME DANS LES FORMULATIONS INCREMENTALES DITES LAGRANGIENNES REACTUALISEES. LE CHAPITRE 2 EST CONSACRE A LA PRISE EN COMPTE DE L'INCOMPRESSIBILITE DANS LES METHODES ELEMENTS FINIS APPLIQUEES A LA VISCOPLASTICITE. UN MAILLEUR AUTOMATIQUE BI-DIMENSIONNEL, BASEE SUR L'ALGORITHME DE LA TRIANGULATION DE DELAUNAY EST PRESENTE DANS LE CHAPITRE 3. ON DECRIT L'ALGORITHME D'UN GENERATEUR DE CONTOUR. ON APPLIQUE CES OUTILS AU REMAILLAGE AUTOMATIQUE DANS LA SIMULATION NUMERIQUE BI-DIMENSIONNEL ET AXISYMETRIQUE DU FORGEAGE. UNE NOUVELLE METHODE DE GENERATION DE MAILLAGE EST PROPOSEE DANS LE CHAPITRE 4. ELLE EST BASEE SUR L'AMELIORATION DE TOPOLOGIE DE MAILLAGE GENERALISEE ET UN PRINCIPE DE VOLUME MINIMAL. UN MAILLEUR DE SURFACE GAUCHE PERMETTANT DE TRAITER LA SURFACE DES MAILLAGES EST PROPOSE, QUI ASSURE LA PRESERVATION DE LA GEOMETRIE A L'AIDE D'UNE MESURE ANGULAIRE DE LA COURBURE CONCENTREE AU NUDS DE LA TRIANGULATION. L'APPLICATION DE CES OUTILS AU REMAILLAGE AUTOMATIQUE 3D EST PRESENTEE ET ILLUSTREE PAR LES EXEMPLES DE CAS INDUSTRIELS DU CHAPITRE 5
Author: THIERRY.. COUPEZ
Publisher:
ISBN:
Category :
Languages : fr
Pages : 242
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Book Description
DES CONDITIONS D'INCOMPRESSIBILITE INCREMENTALE NON LINEAIRE ET LINEARISEE SONT PROPOSEES DANS LE CHAPITRE 1. ELLES PERMETTENT D'ASSURER LA CONSERVATION DU VOLUME DANS LES FORMULATIONS INCREMENTALES DITES LAGRANGIENNES REACTUALISEES. LE CHAPITRE 2 EST CONSACRE A LA PRISE EN COMPTE DE L'INCOMPRESSIBILITE DANS LES METHODES ELEMENTS FINIS APPLIQUEES A LA VISCOPLASTICITE. UN MAILLEUR AUTOMATIQUE BI-DIMENSIONNEL, BASEE SUR L'ALGORITHME DE LA TRIANGULATION DE DELAUNAY EST PRESENTE DANS LE CHAPITRE 3. ON DECRIT L'ALGORITHME D'UN GENERATEUR DE CONTOUR. ON APPLIQUE CES OUTILS AU REMAILLAGE AUTOMATIQUE DANS LA SIMULATION NUMERIQUE BI-DIMENSIONNEL ET AXISYMETRIQUE DU FORGEAGE. UNE NOUVELLE METHODE DE GENERATION DE MAILLAGE EST PROPOSEE DANS LE CHAPITRE 4. ELLE EST BASEE SUR L'AMELIORATION DE TOPOLOGIE DE MAILLAGE GENERALISEE ET UN PRINCIPE DE VOLUME MINIMAL. UN MAILLEUR DE SURFACE GAUCHE PERMETTANT DE TRAITER LA SURFACE DES MAILLAGES EST PROPOSE, QUI ASSURE LA PRESERVATION DE LA GEOMETRIE A L'AIDE D'UNE MESURE ANGULAIRE DE LA COURBURE CONCENTREE AU NUDS DE LA TRIANGULATION. L'APPLICATION DE CES OUTILS AU REMAILLAGE AUTOMATIQUE 3D EST PRESENTEE ET ILLUSTREE PAR LES EXEMPLES DE CAS INDUSTRIELS DU CHAPITRE 5
Author: Pierre Ladevèze
Publisher: Springer Science & Business Media
ISBN: 9780387212944
Category : Technology & Engineering
Languages : en
Pages : 438
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Book Description
This book deals with the management of calculations in linear and nonlinear mechanics. Particular attention is given to error estimators and indicators for structural analysis. The accent is on the concept of error in constitutive relation. An important part of the work is also devoted to the utilization of the error estimators involved in a calculation, beginning with the parameters related to the mesh. Many of the topics are taken from the most recent research by the authors: local error estimators, extention of the concept of error in constitutive relation to nonlinear evolution problems and dynamic problems, adaptive improvement of calculations in nonlinear mechanics. This work is intended for all those interested in mechanics: students, researchers and engineers concerned with the construction of models as well as their simulation for industrial purposes.
Author: Gérard Meunier
Publisher: John Wiley & Sons
ISBN: 0470393807
Category : Science
Languages : en
Pages : 618
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Book Description
Written by specialists of modeling in electromagnetism, this book provides a comprehensive review of the finite element method for low frequency applications. Fundamentals of the method as well as new advances in the field are described in detail. Chapters 1 to 4 present general 2D and 3D static and dynamic formulations by the use of scalar and vector unknowns and adapted interpolations for the fields (nodal, edge, face or volume). Chapter 5 is dedicated to the presentation of different macroscopic behavior laws of materials and their implementation in a finite element context: anisotropy and hysteretic properties for magnetic sheets, iron losses, non-linear permanent magnets and superconductors. More specific formulations are then proposed: the modeling of thin regions when finite elements become misfit (Chapter 6), infinite domains by using geometrical transformations (Chapter 7), the coupling of 2D and 3D formulations with circuit equations (Chapter 8), taking into account the movement, particularly in the presence of Eddy currents (Chapter 9) and an original approach for the treatment of geometrical symmetries when the sources are not symmetric (Chapter 10). Chapters 11 to 13 are devoted to coupled problems: magneto-thermal coupling for induction heating, magneto-mechanical coupling by introducing the notion of strong and weak coupling and magneto-hydrodynamical coupling focusing on electromagnetic instabilities in fluid conductors. Chapter 14 presents different meshing methods in the context of electromagnetism (presence of air) and introduces self-adaptive mesh refinement procedures. Optimization techniques are then covered in Chapter 15, with the adaptation of deterministic and probabilistic methods to the numerical finite element environment. Chapter 16 presents a variational approach of electromagnetism, showing how Maxwell equations are derived from thermodynamic principles.
Author: Paul Louis George
Publisher: John Wiley & Sons
ISBN: 1119384362
Category : Mathematics
Languages : en
Pages : 385
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Book Description
Triangulations, and more precisely meshes, are at the heart of many problems relating to a wide variety of scientific disciplines, and in particular numerical simulations of all kinds of physical phenomena. In numerical simulations, the functional spaces of approximation used to search for solutions are defined from meshes, and in this sense these meshes play a fundamental role. This strong link between meshes and functional spaces leads us to consider advanced simulation methods in which the meshes are adapted to the behaviors of the underlying physical phenomena. This book presents the basic elements of this vision of meshing. These mesh adaptations are generally governed by a posteriori error estimators representing an increase of the error with respect to a size or metric. Independently of this metric of calculation, compliance with a geometry can also be calculated using a so-called geometric metric. The notion of mesh thus finds its meaning in the metric of its elements.
Author: N. P. Weatherill
Publisher:
ISBN:
Category : Computational fluid dynamics
Languages : en
Pages : 1134
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Book Description
Author: Luiz C. Wrovel
Publisher:
ISBN:
Category : Mathematics
Languages : en
Pages : 424
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Book Description
Author: Erwin Stein
Publisher:
ISBN:
Category : Dynamics
Languages : en
Pages : 870
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Book Description
The Encyclopedia of Computational Mechanics provides a comprehensive collection of knowledge about the theory and practice of computational mechanics.
Author: Alok Sutradhar
Publisher: Springer Science & Business Media
ISBN: 3540687726
Category : Technology & Engineering
Languages : en
Pages : 276
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Book Description
Symmetric Galerkin Boundary Element Method presents an introduction as well as recent developments of this accurate, powerful, and versatile method. The formulation possesses the attractive feature of producing a symmetric coefficient matrix. In addition, the Galerkin approximation allows standard continuous elements to be used for evaluation of hypersingular integrals. FEATURES • Written in a form suitable for a graduate level textbook as well as a self-learning tutorial in the field. • Covers applications in two-dimensional and three-dimensional problems of potential theory and elasticity. Additional basic topics involve axisymmetry, multi-zone and interface formulations. More advanced topics include fluid flow (wave breaking over a sloping beach), non-homogeneous media, functionally graded materials (FGMs), anisotropic elasticity, error estimation, adaptivity, and fracture mechanics. • Presents integral equations as a basis for the formulation of general symmetric Galerkin boundary element methods and their corresponding numerical implementation. • Designed to convey effective unified procedures for the treatment of singular and hypersingular integrals that naturally arise in the method. Symbolic codes using Maple® for singular-type integrations are provided and discussed in detail. • The user-friendly adaptive computer code BEAN (Boundary Element ANalysis), fully written in Matlab®, is available as a companion to the text. The complete source code, including the graphical user-interface (GUI), can be downloaded from the web site http://www.ghpaulino.com/SGBEM_book. The source code can be used as the basis for building new applications, and should also function as an effective teaching tool. To facilitate the use of BEAN, a video tutorial and a library of practical examples are provided.
Author: Shakeel Ahmed
Publisher: Springer Science & Business Media
ISBN: 140206540X
Category : Science
Languages : en
Pages : 265
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Book Description
This book contains the results and findings of the advanced research carried out in a pilot area with a thorough investigation of the structure and functioning of an aquifer in a granitic formation. It characterizes the hard rock aquifer system and examines its properties and behavior as well as systematically details the geophysical, geological and remote sensing applications to conceptualize such an aquifer system.
Author: Kader Attia
Publisher:
ISBN: 9781853323591
Category : Art
Languages : en
Pages : 160
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Book Description
One of the rising stars in the international art scene, Kader Attia (b. 1970) is a French-Algerian multidisciplinary artist whose powerful yet complex images, objects and installations examine the way cultures and histories have been constructed.Attia often plays with the vocabulary of museums and architecture to trouble the boundaries between different worlds, particularly Western and non-Western, through his use of re-appropriated and repaired everyday objects and ephemera, such as African masks, stapled paving cracks, assemblages of prostheses and photographs of surgical reconstruction.An in-depth interview with Hayward Gallery director Ralph Rugoff explores the artist's major themes, while art historians and other experts draw out particular threads to examine in depth. Compact but wide-ranging, this is a publication to be held in the hand - an indispensable first guide to an artist with an exceptional perspective on the way humans think about their place in the world.The book features an interview with Ralph Rugoff and essays by Nicola Clayton, Jean-Michel Frodon, Francoise Vergès and Giovanna Zapperi.Published alongside Hayward Gallery's exhibition, London (12 February - 6 May 2019).
