Summary

This book presents the foundations and applications of statics and mechanics of materials by emphasizing the importance of visual analysis of topics-especially through the use of free body diagrams. It also promotes a problem-solving approach to solving examples through its strategy, solution, and discussion format in examples. The AUTHORs further include design and computational examples that help integrate these ABET 2000 requirements. Chapter topics include vectors, forces, systems of forces and moments, objects in equilibrium, structures in equilibrium, centroids and centers of mass centroids, moments of inertia, measures of stress and strain, states of stress, states of strain and the stress-strain relations, axially loaded bars, torsion, internal forces and moments in beams, stresses in beams, deflections of beams, buckling of columns, energy methods, and introduction to fracture mechanics. For civil/aeronautical/engineering mechanics.

Author Biography

Anthony Bedford is Professor of Aerospace Engineering and Engineering Mechanics at the University of Texas at Austin. He received the B.S. degree from the University of Texas at Austin, the M.S. degree from the California Institute of Technology, and the Ph.D. degree from Rice University in 1967. He has industrial experience at Douglas Aircraft Company and at TRW, where he did structural dynamics and trajectory analyses for the Apollo program. He has been on the faculty of the University of Texas at Austin since 1968. He is a member of the University of Texas Academy of Distinguished Teachers and has received several teaching awards over the years.

Dr. Bedford's main professional activity has been education and research in engineering mechanics. He has been principal investigator on grants from the National Science Foundation and the Office of Naval Research, and from 1973 until 1983 was a consultant to Sandia National Laboratories, Albuquerque, New Mexico. His other books include Hamilton's Principle in Continuum Mechanics, Introduction to Elastic Wave Propagation (with D.S. Drumheller), and Mechanics of Materials (with K.M. Liechti).

Wallace T. Fowler holds the Paul D. and Betty Robertson Meek Professorship in Engineering in the Department of Aerospace Engineering and Engineering Mechanics at University of Texas at Austin. Dr. Fowler received the B.A., M.S., and Ph.D. degrees from the University of Texas at Austin, and has been on the faculty there since 1965. During the Fall of .1976, he was on the staff of the United States Air Force Test Pilot School, Edwards Air Force Base, California, and in 1981-1982 he was a visiting professor at the United States Air Force Academy. Since 1991 he has been Associate Director of the Texas Space Grant Consortium.

Dr. Fowler's areas of teaching and research are dynamics, orbital mechanics, and spacecraft mission design. He is author or coauthor of technical papers on trajectory optimization, attitude dynamics, and space mission planning and has also published papers on the theory and practice of engineering teaching. He has received numerous teaching awards including the Chancellor's Council Outstanding Teaching Award, the General Dynamics Teaching Excellence Award, the Halliburton Education Foundation Award of Excellence, the ASEE Fred Merryfield Design Award, and the AIAA-ASEE Distinguished Aerospace Educator Award. He is a member of the Academy of Distinguished Teachers at the University of Texas at Austin. He is a licensed professional engineer, a member of several technical societies, and a Fellow of both the American Institute of Aeronautics and Astronautics and the American Society for Engineering Education. In 2000-2001, he served as president of the American Society for Engineering Education.

Kenneth M. Liechti is a Professor of Aerospace Engineering and Engineering Mechanics at the University of Texas at Austin and holds the E. P. Schoch Professorship in Engineering. He received the B.Sc. degree in aeronautical engineering from Glascow University and the M.S. and Ph.D. degrees in aeronautics from the California Institute of Technology. He gained industrial experience at the Fort Worth Division of General Dynamics prior to joining the faculty of the University of Texas at Austin in 1982.

His primary areas of teaching and research are in the mechanics of materials and fracture mechanics. He is the author or coauthor of papers on interfacial fracture, fracture in adhesively bonded joints, and the nonlinear behavior of polymers. He has consulted on fracture problems with several companies.

Dr. Lieehti is a Fellow of the American Society of Mechanical Engineers and a member of the Society for Experimental Mechanics, the American Academy of Mechanics, and the Adhesion Society. He is an associate editor of the journal Experimental Mechanics, published by the Society for Experimental Mechanics.

1. Introduction.

Engineering and Mathematics. Learning Mathematics. Fundamental Concepts. Units.

2. Vectors.

Scalars and Vectors. Rules for Manipulating Vectors. Cartesian Components. Components in Two Dimensions. Components in Three Dimensions. Products of Vectors. Dot Products. Cross Products. Mixed Triple Products.

3. Forces.

Types of Forces. Equilibrium and Free-Body Diagrams. Two-Dimensional Force Systems. Three-Dimensional Force Systems.

4. Systems of Forces and Moments.

Two-Dimensional Description of the Moment. The Moment Vector. Moment of a Force About a Line. Couples. Equivalent Systems. Representing Systems by Equivalent Systems.

5. Objects in Equilibrium.

The Equilibrium Equations. Two-Dimensional Applications. Statically Indeterminate Objects. Three-Dimensional Applications. Two-Force and Three-Force Members.

6. Structures in Equilibrium.

Trusses. The Method of Joints. The Method of Sections. Frames and Machines.

7. Centroids and Moments of Inertia.

Centroids. Centroids of Areas. Centroids of Composite Areas. Distributed Loads. Centroids of Volumes and Lines. Centers of Mass. Centers of Mass of Composite Objects. Moments of Inertia of Areas. Parallel-Axis Theorems.

8. Friction.

Theory of Dry Friction. Applications.

9. Measures of Stress and Strain.

Stresses. Strains.

10. Axially Loaded Bars.

Stresses in Prismatic Bars. Strains in Prismatic Bars. Statically Indeterminate Problems. Nonprismatic Bars and Distributed Loads. Thermal Strains. Material Behavior. Design Issues.

11. Torsion.

Pure Shear Stress. Torsion of Prismatic Circular Bars. Statically Indeterminate Problems. Nonprismatic Bars and Distributed Loads.

12. States of Stress.

Components of Stress. Transformations of Plane Stress. Mohr's Circle for Plane Stress. Principle Stresses in Three Dimensions. Design Issues: Pressure Vessels.

13. States of Strain and the Stress-Strain Relations.

Components of Strain. Transformations of Plane Strain. Stress-Strain Relations.

14. Internal Forces and Moments in Beams.

Axial Force, Shear Force, and Bending Moment. Shear Force and Bending Moment Diagrams. Equations Relating distributed Load, Shear force, and Bending Moment.

15. Stresses in Beams.

Normal Stress. Shear Stress.

16. Deflections of Beams.

Determination of the Deflection. Statically Indeterminate Beams. Method of Superposition.

17. Buckling of Columns.

Euler Buckling Load. Other End Conditions.

Appendix A: Review of Mathematics.

Algebra. Trigonometry. Derivatives. Integrals. Taylor Series. Vector Analysis.

Appendix B: Properties of Areas and Lines.

Areas. Lines.

Appendix C: Properties of Volumes and Homogeneous Objects.
Appendix D: Material Properties.
Appendix E: Deflections and Slopes of Prismatic Beams.
Answers to Even-Numbered Problems.
Index.

Supplemental Materials

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The Used, Rental and eBook copies of this book are not guaranteed to include any supplemental materials. Typically, only the book itself is included. This is true even if the title states it includes any access cards, study guides, lab manuals, CDs, etc.

Excerpts

Our original objective in writing this book was to present the foundations and applications of statics and mechanics of materials as we do in the classroom. We used many sequences of figures, emulating the gradual development of a figure by a teacher explaining a concept. We stressed the importance of visual analysis in gaining understanding, especially through the use of free-body diagrams. Because inspiration is so conducive to learning, we based many of our examples and problems on a variety of modern engineering applications. Key Series Features This volume completes our series in Engineering Mechanics that includes Engineering Mechanics-Statics,Third Edition, by Bedford and Fowler Engineering Mechanics-Dynamics,Third Edition, by Bedford and Fowler Engineering Mechanics-Statics & Dynamics,Third Edition, by Bedford and Fowler Engineering Mechanics-Statics Principles,by Bedford and Fowler Engineering Mechanics-Dynamics Principles,by Bedford and Fowler Engineering Mechanics-Statics & Dynamics Principles,by Bedford and Fowler Mechanics of Materialsby Bedford and Liechti Statics and Mechanics of Materialsby Bedford, Fowler, and Liechti (this volume) Positive responses from users and reviewers have led us to retain the basic organization, content, and features. During our preparation of this volume, we examined how we presented each concept, example, figure, summary statement, and problem. Where necessary, we made changes, additions, or deletions to simplify and clarify the presentation. This volume features Problems that contain elements of engineering design have been marked with a newDicon. We have added new examples where users indicated more were needed. Many of the new examples continue our emphasis on realistic and motivational applications and engineering design. New sets ofStudy Questionsappear after most sections to help students check their retention of key concepts. Each example is clearly labeled for its teaching purpose. A redesigned text and added photographs throughout help students connect the text real world applications and situations. Examples that Teach The Strategy/Solution/Discussion framework employed by most of our examples is designed to emphasize the critical importance of good problem-solving skills. Our objective is to teach students how to approach problems and critically judge the results. Commitment to Students and Instructors In preparing this volume and the accompanying solutions manual, we have taken precautions to ensure accuracy to the best of our ability. We have each solved the new problems in an effort to be sure that their answers are correct and that they are of an appropriate level of difficulty. Karim Nohra of the University of South Florida also checked the text, examples, problems and solutions manual. Any errors that remain are the responsibility of the authors. We welcome communication from students and instructors concerning errors or areas for improvement. Our mailing address is Department of Aerospace Engineering and Engineering Mechanics, University of Texas at Austin, Austin, Texas 78712. Our electronic mail address isabedford@mail.utexas.edu. Supplements Instructor's Solutions ManualThis supplement, available to instructors contains complete solutions to all of the problems and several sample syllabi. Each solution comes with problem statement as well as associated artwork. Study Packsare designed to give students the tools to improve their mechanics study skills. They consists of three study components: a free body-diagram workbook, a Visualization CD based on Working Model Software, and an access code to a website with 50