Boundary Element Methods for Engineers and Scientists

Over the past decades, the Boundary Element Method has emerged as a ver satile and powerful tool for the solution of engineering problems, presenting in many cases an alternative to the more widely used Finite Element Method. As with any numerical method, the engineer or scientist who applies it to a practical problem needs to be acquainted with, and understand, its basic principles to be able to apply it correctly and be aware of its limitations. It is with this intention that we have endeavoured to write this book: to give the student or practitioner an easy-to-understand introductory course to the method so as to enable him or her to apply it judiciously. As the title suggests, this book not only serves as an introductory course, but also cov ers some advanced topics that we consider important for the researcher who needs to be up-to-date with new developments. This book is the result of our teaching experiences with the Boundary Element Method, along with research and consulting activities carried out in the field. Its roots lie in a graduate course on the Boundary Element Method given by the authors at the university of Stuttgart. The experiences gained from teaching and the remarks and questions of the students have contributed to shaping the 'Introductory course' (Chapters 1-8) to the needs of the stu dents without assuming a background in numerical methods in general or the Boundary Element Method in particular.

Easy-to-understand introductory course to this difficult field Thoroughly introduces physical and mathematical fundamentals Deals with the classical and novel methods Discusses coupling with other numerical methods, like FEM

Autorentext
Prof. Dr.-Ing. Lothar Gaul ist Ordinarius und Direktor des Instituts für Angewandte und Experimentelle Mechanik an der Universität Stuttgart.

Klappentext

This introductory course on the classical Boundary Element Method also contains advanced topics such as the Dual Reciprocity and the Hybrid Boundary Element Methods. The latter methods are extensions that permit the application of BME to anisotropic materials, as well as multi-field problems and fluid-structure interaction. The class-tested textbook offers a clear and easy-to-understand introduction to the subject, including worked-out examples that describe all the basic features of the method. The first two chapters not only establish the mathematical basis for BEM but also review the basics of continuum mechanics for field problems, perhaps a unique feature for a text on numerical methods. This helps the reader to understand the physical principles of the field problems, to apply the method judiciously, and toe critically evaluate the results.

Inhalt
I. The Direct Boundary Element Method.- 1. Introduction.- 2. Mathematical Preliminaries.- 3. Continuum Physics.- 4. Boundary Element Method for Potential Problems.- 5. Boundary Element Method for Elastic Continua.- 6. Numerical Integration.- II. The Dual Reciprocity Method.- 7. DRM for Potential Problems and Elastodynamics.- 8. Solution of the Equations of Motion.- 9. Dynamic Piezoelectricity.- 10. Coupled Thermoelasticity.- III. Hybrid Boundary Element Methods.- 11. Variational Principles of Continuum Mechanics.- 12. The Hybrid Displacement Method.- 13. The Hybrid Stress Method for Acoustics.- 14. The Hybrid Boundary Element Method in Time Domain.- IV. Appendices.- A. Properties of Elastic Materials.- B. Fundamental Solutions.- C. Particular Solutions.- D. The Bott-Duffin Inverse.- References.