دانلود کتاب Finite element procedures

Preface
Finite element procedures are now an important and frequently indispensable part of
engineering analysis and design. Finite element computer programs are now widely used in
practically all branches of engineering for the analysis of structures, solids, and fluids.
My objective in writing this book was to provide a text for upper-level undergraduate
and graduate courses on finite element analysis and to provide a book for self-study by
engineers and scientists.
With this objective in mind, I have developed this book from my earlier publication
Finite Element Procedures in Engineering Analysis (Prentice-Hall, 1982). I have kept the
same mode of presentation but have consolidated, updated, and strengthened the earlier
writing to the current state of finite element developments. Also, I have added new sections,
both to cover some important additional topics for completeness of the presentation and to
facilitate (through exercises) the teaching of the material discussed in the book.
This text does not present a survey of finite element methods. For such an endeavor,
anumber of volumes would be needed. Instead, this book concentrates only on certain finite
element procedures, namely, on techniques that I consider very useful in engineering
practice and that will probably be employed for many years to come. Also, these methods
are introduced in such a way that they can be taught effectively—and in an exciting
manner—to students.
An important aspect of a finite element procedure is its reliability, so that the method
can be used in a confident manner in computer-aided design. This book emphasizes this
point throughout the presentations and concentrates on finite element procedures that are
general and reliable for engineering analysis.
Hence, this book is clearly biased in that it presents only certain finite element
procedures and in that it presents these procedures in a certain manner. In this regard, the
book reflects my philosophy toward the teaching and the use of finite element methods.
While the basic topics of this book focus on mathematical methods, an exciting and
thorough understanding of finite element procedures for engineering applications is
achieved only if sufficient attention is given to both the physical and mathematical charac-
teristics of the procedures. The combined physical and mathematical understanding greatly
enriches our confident use and further development of finite element methods and is there-
fore emphasized in this text.
These thoughts also indicate that a collaborauon between engineers and mathemati-
cians to deepen our understanding of finite element methods and to further advance in the
fields of research can be of great benefit. Indeed, I am thankful to the mathematician Franco
Brezzi for our research collaboration in this spirit, and for his valuable suggestions regard-
ing this book.
I consider it one of the greatest achievements for an educator to write a valuable book.
In these times, all fields of engineering are rapidly changing, and new books for students are
needed in practically all areas of engineering. I am therefore grateful that the Mechanical
Engineering Department of M.L.T. has provided me with an excellent environment in which.
to pursue my interests in teaching, research, and scholarly writing. While it required an
immense effort on my part to write this book, I wanted to accomplish this task as a
commitment to my past and future students, to any educators and researchers who might
have an interest in the work, and, of course, to improve upon my teaching at M.I.T.
I have been truly fortunate to work with many outstanding students at M.I.T., for
which I am very thankful. It has been a great privilege to be their teacher and work with
them. Of much value has also been that I have been intimately involved, at my company
ADINA R & D, Inc., in the development of finite element methods for industry. This
involvement has been very beneficial in my teaching and research, and in my writing of this
book.
A text of significant depth and breadth on a subject that came to life only a few decades
ago and that has experienced tremendous advances, can be written only by an author who
has had the benefit of interacting with many people in the field. I would like to thank all my
students and friends who contributed—and will continue to contribute—to my knowledge
and understanding of finite element methods. My interaction with them has given me great
joy and satisfaction.
I also would like to thank my secretary, Kristan Raymond, for her special efforts in
typing the manuscript of this text.
Finally, truly unbounded thanks are due to my wife, Zorka, and children, Ingrid and
Mark, who, with their love and their understanding of my efforts, supported me in writing
this book.

K. J. Bathe