Error Analysis of Nearly Singular Integrals in the Boundary Element Method

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Publisher :
ISBN 13 :
Total Pages : 101 pages
Book Rating : 4.:/5 (226 download)

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Book Synopsis Error Analysis of Nearly Singular Integrals in the Boundary Element Method by : Kristy Lee Evangelista

Download or read book Error Analysis of Nearly Singular Integrals in the Boundary Element Method written by Kristy Lee Evangelista and published by . This book was released on 2003 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Projection Transformation Method for Nearly Singular Surface Boundary Element Integrals

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Publisher : Springer Science & Business Media
ISBN 13 : 364284698X
Total Pages : 465 pages
Book Rating : 4.6/5 (428 download)

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Book Synopsis A Projection Transformation Method for Nearly Singular Surface Boundary Element Integrals by : Ken Hayami

Download or read book A Projection Transformation Method for Nearly Singular Surface Boundary Element Integrals written by Ken Hayami and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: In three dimensional boundary element analysis, computation of integrals is an important aspect since it governs the accuracy of the analysis and also because it usually takes the major part of the CPU time. The integrals which determine the influence matrices, the internal field and its gradients contain (nearly) singular kernels of order lIr a (0:= 1,2,3,4,.··) where r is the distance between the source point and the integration point on the boundary element. For planar elements, analytical integration may be possible 1,2,6. However, it is becoming increasingly important in practical boundary element codes to use curved elements, such as the isoparametric elements, to model general curved surfaces. Since analytical integration is not possible for general isoparametric curved elements, one has to rely on numerical integration. When the distance d between the source point and the element over which the integration is performed is sufficiently large compared to the element size (d> 1), the standard Gauss-Legendre quadrature formula 1,3 works efficiently. However, when the source is actually on the element (d=O), the kernel 1I~ becomes singular and the straight forward application of the Gauss-Legendre quadrature formula breaks down. These integrals will be called singular integrals. Singular integrals occur when calculating the diagonals of the influence matrices.

Singular Integrals in Boundary Element Methods

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Publisher : Computational Mechanics
ISBN 13 :
Total Pages : 456 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Singular Integrals in Boundary Element Methods by : Vladimír Sládek

Download or read book Singular Integrals in Boundary Element Methods written by Vladimír Sládek and published by Computational Mechanics. This book was released on 1998 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: A text in singular integrals in boundary element methods. Topics covered include: treatment in crack problems; regularization of boundary integral equations by the derivative transfer method; regularization and evaluation of singular domain integrals in boundary element methods and others.

The Isogeometric Boundary Element Method

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Publisher : Springer Nature
ISBN 13 : 3030233391
Total Pages : 335 pages
Book Rating : 4.0/5 (32 download)

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Book Synopsis The Isogeometric Boundary Element Method by : Gernot Beer

Download or read book The Isogeometric Boundary Element Method written by Gernot Beer and published by Springer Nature. This book was released on 2019-09-21 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the introduction of isogeometric technology to the boundary element method (BEM) in order to establish an improved link between simulation and computer aided design (CAD) that does not require mesh generation. In the isogeometric BEM, non-uniform rational B-splines replace the Lagrange polynomials used in conventional BEM. This may seem a trivial exercise, but if implemented rigorously, it has profound implications for the programming, resulting in software that is extremely user friendly and efficient. The BEM is ideally suited for linking with CAD, as both rely on the definition of objects by boundary representation. The book shows how the isogeometric philosophy can be implemented and how its benefits can be maximised with a minimum of user effort. Using several examples, ranging from potential problems to elasticity, it demonstrates that the isogeometric approach results in a drastic reduction in the number of unknowns and an increase in the quality of the results. In some cases even exact solutions without refinement are possible. The book also presents a number of practical applications, demonstrating that the development is not only of academic interest. It then elegantly addresses heterogeneous and non-linear problems using isogeometric concepts, and tests them on several examples, including a severely non-linear problem in viscous flow. The book makes a significant contribution towards a seamless integration of CAD and simulation, which eliminates the need for tedious mesh generation and provides high-quality results with minimum user intervention and computing.

Variable Transformations for Nearly Singular Integrals in the Boundary Element Method

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Publisher :
ISBN 13 :
Total Pages : 21 pages
Book Rating : 4.:/5 (675 download)

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Book Synopsis Variable Transformations for Nearly Singular Integrals in the Boundary Element Method by :

Download or read book Variable Transformations for Nearly Singular Integrals in the Boundary Element Method written by and published by . This book was released on 2005 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Symmetric Galerkin Boundary Element Method

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Publisher : Springer Science & Business Media
ISBN 13 : 3540687726
Total Pages : 276 pages
Book Rating : 4.5/5 (46 download)

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Book Synopsis Symmetric Galerkin Boundary Element Method by : Alok Sutradhar

Download or read book Symmetric Galerkin Boundary Element Method written by Alok Sutradhar and published by Springer Science & Business Media. This book was released on 2008-09-26 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Numerical Techniques for Boundary Element Methods

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Publisher : Springer-Verlag
ISBN 13 : 3663140059
Total Pages : 202 pages
Book Rating : 4.6/5 (631 download)

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Book Synopsis Numerical Techniques for Boundary Element Methods by : Wolfgang Hackbusch

Download or read book Numerical Techniques for Boundary Element Methods written by Wolfgang Hackbusch and published by Springer-Verlag. This book was released on 2013-09-03 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Boundary Element Topics

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Publisher : Springer Science & Business Media
ISBN 13 : 3642607918
Total Pages : 506 pages
Book Rating : 4.6/5 (426 download)

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Book Synopsis Boundary Element Topics by : W.L. Wendland

Download or read book Boundary Element Topics written by W.L. Wendland and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: The so-called boundary element methods BEM, i.e. finite element approxima tions of boundary integral equations have been improved recently even more vividly then ever before and found some remarkable support by the German Research Foundation DFG in the just finished Priority Research Program "boundary element methods" . When this program began, we could start from several already existing particular activities which then during the six years initiated many new re sults and decisive new developments in theory and algorithms. The program was started due to encouragement by E. Stein, when most of the later par ticipants met in Stuttgart at a Boundary Element Conference 1987. Then W. Hackbusch, G. Kuhn, S. Wagner and W. Wendland were entrusted with writing the proposal which was 1988 presented at the German Research Foun dation and started in 1989 with 14 projects at 11 different universities. After German unification, the program was heavily extended by six more projects, four of which located in Eastern Germany. When we started, we were longing for the following goals: 1. Mathematicians and engineers should do joint research. 2. Methods and computational algorithms should be streamlined with re spect to the new computer architectures of vector and parallel computers. 3. The asymptotic error analysis of boundary element methods should be further developed. 4. Non-linear material laws should be taken care of by boundary element methods for crack-mechanics. 5. The coupling of finite boundary elements should be improved.

Boundary Elements X: Mathematical and computational aspects

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ISBN 13 :
Total Pages : 666 pages
Book Rating : 4.:/5 (43 download)

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Book Synopsis Boundary Elements X: Mathematical and computational aspects by : C. A. Brebbia

Download or read book Boundary Elements X: Mathematical and computational aspects written by C. A. Brebbia and published by . This book was released on 1988 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Unified Interpretation for Singular and Near-singular Integrals in the Boundary Element Method

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Publisher :
ISBN 13 :
Total Pages : 388 pages
Book Rating : 4.:/5 (219 download)

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Book Synopsis A Unified Interpretation for Singular and Near-singular Integrals in the Boundary Element Method by : Dan Rosen

Download or read book A Unified Interpretation for Singular and Near-singular Integrals in the Boundary Element Method written by Dan Rosen and published by . This book was released on 1993 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Applied mechanics reviews

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ISBN 13 :
Total Pages : 400 pages
Book Rating : 4.3/5 (243 download)

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Book Synopsis Applied mechanics reviews by :

Download or read book Applied mechanics reviews written by and published by . This book was released on 1948 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Boundary Element Methods in Engineering and Sciences

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Publisher : World Scientific
ISBN 13 : 184816579X
Total Pages : 412 pages
Book Rating : 4.8/5 (481 download)

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Book Synopsis Boundary Element Methods in Engineering and Sciences by : M. H. Aliabadi

Download or read book Boundary Element Methods in Engineering and Sciences written by M. H. Aliabadi and published by World Scientific. This book was released on 2011 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: The boundary element method (BEM), also known as the boundary integral equation method (BIEM), is a modern numerical technique. It is an established alternative to traditional computational methods of engineering analysis. This book provides a comprehensive account of the method and its application to problems in engineering and science.

Selected Topics in Boundary Integral Formulations for Solids and Fluids

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Publisher : Springer
ISBN 13 : 3709125480
Total Pages : 231 pages
Book Rating : 4.7/5 (91 download)

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Book Synopsis Selected Topics in Boundary Integral Formulations for Solids and Fluids by : Vladimir Kompiš

Download or read book Selected Topics in Boundary Integral Formulations for Solids and Fluids written by Vladimir Kompiš and published by Springer. This book was released on 2014-05-04 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book outlines special approaches using singular and non-singular, multi-domain and meshless BEM formulations, hybrid- and reciprocity-based FEM for the solution of linear and non-linear problems of solid and fluid mechanics and for the acoustic fluid-structure interaction. Use of Trefftz functions and other regularization approaches to boundary integral equations (BIE), boundary contour and boundary node solution of BIE, sensitivity analysis, shape optimization, error analysis and adaptivity, stress and displacement derivatives in non-linear problems smoothing using Trefftz polynomials and other special numerical approaches are included. Applications to problems such as noise radiation from rolling bodies, acoustic radiation in closed and infinite domains, 3D dynamic piezoelectricity, Stefan problems and coupled problems are included.

Boundary Elements and Other Mesh Reduction Methods XXXVI

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Publisher : WIT Press
ISBN 13 : 1845648412
Total Pages : 569 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Boundary Elements and Other Mesh Reduction Methods XXXVI by : X. W. Gao

Download or read book Boundary Elements and Other Mesh Reduction Methods XXXVI written by X. W. Gao and published by WIT Press. This book was released on 2013-12-11 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Conference on Boundary Elements and Mesh Reduction Methods (BEM/MRM) is recognised as the international forum for the latest advances in these techniques and their applications in science and engineering. Launched in 1978 the Conference continues to attract original contributions and has become the forum for their rapid dissemination throughout the international scientific community. Practically all new boundary element ideas have first appeared in the proceedings of these meetings.

The Boundary Element Method in Acoustics

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Publisher : Stephen Kirkup
ISBN 13 : 9780953403103
Total Pages : 136 pages
Book Rating : 4.4/5 (31 download)

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Book Synopsis The Boundary Element Method in Acoustics by : Stephen Kirkup

Download or read book The Boundary Element Method in Acoustics written by Stephen Kirkup and published by Stephen Kirkup. This book was released on 1998 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Boundary Element Analysis of Nonhomogeneous Biharmonic Phenomena

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Publisher : Springer Science & Business Media
ISBN 13 : 3642847013
Total Pages : 261 pages
Book Rating : 4.6/5 (428 download)

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Book Synopsis Boundary Element Analysis of Nonhomogeneous Biharmonic Phenomena by : Charles V. Camp

Download or read book Boundary Element Analysis of Nonhomogeneous Biharmonic Phenomena written by Charles V. Camp and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: At the date of this writing, there is no question that the boundary element method has emerged as one of the major revolutions on the engineering science of computational mechanics. The emergence of the technique from relative obscurity to a cutting edge engineering analysis tool in the short space of basically a ten to fifteen year time span is unparalleled since the advent of the finite element method. At the recent international conference BEM XI, well over one hundred papers were presented and many were pub lished in three hard-bound volumes. The exponential increase in interest in the subject is comparable to that shown in the early days of finite elements. The diversity of appli cations of BEM, the broad base of interested parties, and the ever-increasing presence of the computer as an engineering tool are probably the reasons for the upsurge in pop ularity of BEM among researchers and industrial practitioners. Only in the past few years has the BEM audience become large enough that we have seen the development of specialty books on specific applications of the boundary element method. The present text is one such book. In this work, we have attempted to present a self-contained treatment of the analysis of physical phenomena governed by equations containing biharmonic operators. The biharmonic operator defines a very important class of fourth-order PDE problems which includes deflections of beams and thin plates, and creeping flow of viscous fluids.

Advanced Boundary Element Methods

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Publisher : Springer
ISBN 13 : 3319920014
Total Pages : 661 pages
Book Rating : 4.3/5 (199 download)

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Book Synopsis Advanced Boundary Element Methods by : Joachim Gwinner

Download or read book Advanced Boundary Element Methods written by Joachim Gwinner and published by Springer. This book was released on 2018-07-28 with total page 661 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to the mathematical analysis of the numerical solution of boundary integral equations treating boundary value, transmission and contact problems arising in elasticity, acoustic and electromagnetic scattering. It serves as the mathematical foundation of the boundary element methods (BEM) both for static and dynamic problems. The book presents a systematic approach to the variational methods for boundary integral equations including the treatment with variational inequalities for contact problems. It also features adaptive BEM, hp-version BEM, coupling of finite and boundary element methods – efficient computational tools that have become extremely popular in applications. Familiarizing readers with tools like Mellin transformation and pseudodifferential operators as well as convex and nonsmooth analysis for variational inequalities, it concisely presents efficient, state-of-the-art boundary element approximations and points to up-to-date research. The authors are well known for their fundamental work on boundary elements and related topics, and this book is a major contribution to the modern theory of the BEM (especially for error controlled adaptive methods and for unilateral contact and dynamic problems) and is a valuable resource for applied mathematicians, engineers, scientists and graduate students.