Boundary Elements in Dynamics

Boundary Elements in Dynamics PDF Author: J. Dominguez
Publisher: WIT Press
ISBN: 1853122580
Category : Technology & Engineering
Languages : en
Pages : 724

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Book Description
A reference for those who need to acquire detailed knowledge of the formulation, implementation, and practical applications of BEM in dynamics. The author presents research on BEM in dynamics of continua. The main emphasis is on the development of the different boundary element formulations.

Boundary Elements in Dynamics

Boundary Elements in Dynamics PDF Author: J. Dominguez
Publisher: WIT Press
ISBN: 1853122580
Category : Technology & Engineering
Languages : en
Pages : 724

Get Book Here

Book Description
A reference for those who need to acquire detailed knowledge of the formulation, implementation, and practical applications of BEM in dynamics. The author presents research on BEM in dynamics of continua. The main emphasis is on the development of the different boundary element formulations.

Boundary Elements in Dynamics

Boundary Elements in Dynamics PDF Author:
Publisher:
ISBN: 9786613969118
Category : Boundary element methods
Languages : en
Pages : 724

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Book Description
This book is a development of the author's involvement in the field of Boundary Elements (B.E.), and of Boundary Elements in dynamics in particular, over a period of sixteen years. The intent is for it to summarize the current state of the Boundary Element Method (BEM) in dynamics of continua. The main emphasis is on the development of the different B.E. formulations for time dependent problems and the necessary mathematical transformations to produce computer codes which are able to solve scalar, elastic and poroelastic wave propagation problems. Nevertheless, there is also a substantial part of the book which covers the application of the BEM to important engineering problems in dynamics. The mathematics involved in the book has been developed to the necessary degree to make it as self-contained as possible. Readers with almost no background in B.E. or in dynamics should be able to follow the text. Boundary Elements in Dynamics has been written with a dual purpose. The intent is for it to be not only a reference book for researchers and engineers, but also a book from which scientists, graduate students and practising engineers can learn in detail the formulation, implementation and practical applications of the BEM in dynamics. The book could serve as a text to a course on Boundary Elements in Dynamics or as a supplement to other books in a more general course.

Boundary Element Techniques

Boundary Element Techniques PDF Author: C. A. Brebbia
Publisher: Springer Science & Business Media
ISBN: 3642488609
Category : Technology & Engineering
Languages : en
Pages : 479

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Book Description
VI SOCRATES: I think that we ought to stress that we will write only about things that we have first hand experience in, in a coherent way that will be useful to engineers and other scientists and stressing the formulation without being too mathematical. We should write with integrity and honesty, giving reference to other authors where reference is due, but avoiding mentioning everybody just to be certain that our book is widely advertised. Above all, the book should be clear and useful. PLATO: I think we should include a good discussion of fundamental ideas, of how integral equations are formed, pointing out that they are like two dimensional shadows of three dimensional objects, ... SOCRATES: Stop there! Remember you are not 'the' Plato! PLATO: Sorry, I was carried away. ARISTOTLE: I think that the book should have many applications so that the reader can learn by looking at them how to use the method. SOCRATES: I agree. But we should be careful. It is easy to include many illustra tions and examples in a book in order to disguise its meagre contents. All examples should be relevant. ARISTOTLE: And we should also include a full computer program to give the reader if so he wishes, a working experience of the technique.

The Scaled Boundary Finite Element Method

The Scaled Boundary Finite Element Method PDF Author: John P. Wolf
Publisher: John Wiley & Sons
ISBN: 9780471486824
Category : Technology & Engineering
Languages : en
Pages : 398

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Book Description
A novel computational procedure called the scaled boundary finite-element method is described which combines the advantages of the finite-element and boundary-element methods : Of the finite-element method that no fundamental solution is required and thus expanding the scope of application, for instance to anisotropic material without an increase in complexity and that singular integrals are avoided and that symmetry of the results is automatically satisfied. Of the boundary-element method that the spatial dimension is reduced by one as only the boundary is discretized with surface finite elements, reducing the data preparation and computational efforts, that the boundary conditions at infinity are satisfied exactly and that no approximation other than that of the surface finite elements on the boundary is introduced. In addition, the scaled boundary finite-element method presents appealing features of its own : an analytical solution inside the domain is achieved, permitting for instance accurate stress intensity factors to be determined directly and no spatial discretization of certain free and fixed boundaries and interfaces between different materials is required. In addition, the scaled boundary finite-element method combines the advantages of the analytical and numerical approaches. In the directions parallel to the boundary, where the behaviour is, in general, smooth, the weighted-residual approximation of finite elements applies, leading to convergence in the finite-element sense. In the third (radial) direction, the procedure is analytical, permitting e.g. stress-intensity factors to be determined directly based on their definition or the boundary conditions at infinity to be satisfied exactly. In a nutshell, the scaled boundary finite-element method is a semi-analytical fundamental-solution-less boundary-element method based on finite elements. The best of both worlds is achieved in two ways: with respect to the analytical and numerical methods and with respect to the finite-element and boundary-element methods within the numerical procedures. The book serves two goals: Part I is an elementary text, without any prerequisites, a primer, but which using a simple model problem still covers all aspects of the method and Part II presents a detailed derivation of the general case of statics, elastodynamics and diffusion.

The Boundary Element Method with Programming

The Boundary Element Method with Programming PDF Author: Gernot Beer
Publisher: Springer Science & Business Media
ISBN: 3211715762
Category : Technology & Engineering
Languages : en
Pages : 496

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Book Description
This thorough yet understandable introduction to the boundary element method presents an attractive alternative to the finite element method. It not only explains the theory but also presents the implementation of the theory into computer code, the code in FORTRAN 95 can be freely downloaded. The book also addresses the issue of efficiently using parallel processing hardware in order to considerably speed up the computations for large systems. The applications range from problems of heat and fluid flow to static and dynamic elasto-plastic problems in continuum mechanics.

Boundary Elements in Dynamics

Boundary Elements in Dynamics PDF Author: Jose Dominguez
Publisher: Computational Mechanics
ISBN: 9781858610214
Category : Boundary element methods
Languages : en
Pages : 707

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Book Description
Summarizes the current state of research of the Boundary Element Method (BEM) in dynamics of continua. The main emphasis is on the development of different BE formulations for time-dependent problems and the necessary mathematical transformations to produce computer codes.

Symmetric Galerkin Boundary Element Method

Symmetric Galerkin Boundary Element Method PDF 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.

Recent Developments in Boundary Element Methods

Recent Developments in Boundary Element Methods PDF Author: Evangelous J. Sapountzakis
Publisher: WIT Press
ISBN: 1845644921
Category : Technology & Engineering
Languages : en
Pages : 417

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Book Description
This Festschrift is a collection of articles contributed by colleagues, collaborators and past students to honor Professor John T. Katsikadelis on the occasion of his 70 years. Professor Katsikadelis, now an emeritus professor at the National Technical University of Athens in Greece, is one of the BEM pioneers who started his research in this field with his PhD thesis at the Polytechnic Institute of New York in the 1970s and continued it to date.The book comprises 26 contributions by more than 50 leading researchers in Boundary Element Methods (BEM) and other Mesh Reduction Methods (MRM). All contributors are well-known scientists from Asia, Australia, Europe, and North and South America. The volume is essentially a collection of both original and review articles covering a variety of research topics in the areas of solid mechanics, fluid mechanics, potential theory, composite materials, fracture mechanics, damage mechanics, plasticity, heat transfer, dynamics and vibrations and soil-structure interaction. Invaluable to scientists, engineers and other professionals interested in the latest developments of the boundary integral equation methods, it addresses the needs of the BEM computational mechanics research community.The book is written for: researchers in academia and industry and graduate students focusing on solid and fluid mechanics as used in civil, mechanical and aerospace engineering.

Finite Element and Boundary Methods in Structural Acoustics and Vibration

Finite Element and Boundary Methods in Structural Acoustics and Vibration PDF Author: Noureddine Atalla
Publisher: CRC Press
ISBN: 1466592885
Category : Technology & Engineering
Languages : en
Pages : 466

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Book Description
Effectively Construct Integral Formulations Suitable for Numerical ImplementationFinite Element and Boundary Methods in Structural Acoustics and Vibration provides a unique and in-depth presentation of the finite element method (FEM) and the boundary element method (BEM) in structural acoustics and vibrations. It illustrates the principles using a

Programming the Boundary Element Method

Programming the Boundary Element Method PDF Author: Gernot Beer
Publisher: Wiley
ISBN: 9780471857228
Category : Technology & Engineering
Languages : en
Pages : 472

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Book Description
Providing an easy introduction to the boundary element method, this book is ideal for any reader wishing to work in this field or use this method for the solution of engineering problems. From the beginning, the emphasis is on the implementation of the method into computer programs which can be used to solve real problems. The book covers two-andthree-dimensional linear and non-linear analysis in potential flow (heat flow and seepage) and static elasticity. Several computer programs are listed in the book and may be downloaded free of charge via the Internet. They include programs and subroutines for: * 2-D analysis of potential problems using the Trefftz method * 2-D and 3-D linear analysis of potential and static elasticity problems using isoparametric elements (single and multiple regions) * implementation of non-linear problems * coupling to finite elements The programs (written in FORTRAN 90) are well documented, and can be employed by the user to gain experience with the method through the solution of small test examples. Furthermore, readers may use them as a starting point for developing their own boundary element package. In addition, exercises are included in most chapters involving the use of the programs with answers given in an Appendix, and a number of interesting industrial applications in the areas of mechanical, civil and geotechnical engineering are presented.