Engineering Mechanics: Statics / Edition 5

by Anthony Bedford, Wallace Fowler

Overview

This textbook is designed for introductory statics courses found in mechanical engineering, civil engineering, aeronautical engineering, and engineering mechanics departments. It better enables students to learn challenging material through effective, efficient examples and explanations.

Product Details

ISBN-13:	9780136129158
Publisher:	Pearson Education
Publication date:	05/10/2007
Edition description:	New Edition
Pages:	656
Product dimensions:	7.90(w) x 10.10(h) x 1.10(d)

Read an Excerpt

Our original objective in writing this book was to present the foundations and applications of statics 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 freebody diagrams. Because inspiration is so conducive to learning, we based many of our examples and problems on a varies of modern engineering applications. With encouragement and help from main students and fellow teachers who have used the book, we continue and expand upon these themes in this edition.

Examples that Teach

The Strategy/Solution/Discussion framework employed by most of our examples is designed to emphasize the critical importance of good problemsolving skills. Our objective is to teach students how to approach problems and critically judge the results.

Engineering Design

We include simple design considerations in many examples and problems without compromising emphasis on fundamental mechanics. Design problems are marked with a D Icon. Optional exampies titled "Application to Engineering" provide more detailed discussions of the uses of statics in engineering design.

Computational Mechanics

Some instructors prefer to teach statics without requiring the use of a computer. Others use statics as an opportunity to introduce students to the use of computers in engineering, having them either write their own programs in a lower level language or use higher level problemsolving software. Our book is suitable for each of these approaches. We provide optional,selfcontained "Computational Mechanics" sections with examples and problems designed for solution by a programmable calculator or computer. In addition, tutorials on using Mathcad^® and MATLAB^® in engineering mechanics are available from our texts website. See supplements for a further description.

Consistent Use of Color

To help students recognize and interpret elements of figures, we use consistent identifying colors

New to the Third Edition

Positive responses from users and reviewers have led us to retain the basic organization, content, and features of the first edition. During our preparation of this edition, we examined how we presented each concept, example, figs summary statement, and problem. Where necessary, we made changes, additions, or deletions to simplify and clarify the presentation. In response requests, we made the following notable changes:

• New Design Problems appear at the end of most chapters, as well as special Design Experiences. Design Experiences in particular are more involved in nature and are appropriate to assign to teams. Problems with design intent are marked with a D icon.
• 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.
• We have revised many existing problems to reflect metric versus English units. We have also added more than 200 new problems. As with the examples, many of the new problems focus on placing statics within the context of engineering practice.
• New sets of Study Questions appear after most sections to help students check their retention of key concepts.
• Each example is clearly labeled for its teaching purpose.
• We have redesigned the text and also added photographs throughout to help students connect the text to real world applications and situations.
• An extensive new supplement program includes webbased assessment software, visualization software, and much more. See the Supplement description for complete information.

Commitment to Students and Instructors

In revising the textbook and solutions manual, we have taken precaution 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 is [e-mail].

Supplements

Student Supplements

Web Assessment Software lets students solve problems from the text with randomized variables so each student solves a slightly different problem. After students have submitted their answers, they receive the actual answers and can keep trying similar problems until they are successful. By integrating with an optional course management system, professors can have student results recorded electronically. Contact your PH rep for more information. This site is password protected—passwords appear in each text's accompanying Statics Study Pack.

Statics Study Pack is designed to give students the tools to improve their study skills. The Statics Study Pack comes bundled for free with every Third Edition of Statics sold in bookstores. It consists of three study components—a free bodydiagram workbook, a Visualization CD based on Working Model Software, and an access code to a website with 500 sample Statics and Dynamics problems and solutions.

• FreeBody Diagram Workbook prepared by Peter Schiavone of the University of Alberta. This workbook begins with a tutorial on free body diagrams and then includes 50 practice problems of progressing difficulty with complete solutions. Further "strategies and tips" help students understand how to use the diagrams in solving the accompanying problems.
• Working Model CD contains 25 preset simulations of Statics examples in the text that include questions for further exploration. Simulations are powered by the Working Model Engine and were created with actual artwork from the text to enhance their correlation with the text.
• PasswordProtected Website contains 500 sample Statics and Dynamics problems for students to study. Problems are keyed to each chapter of the text and contain complete solutions. All problems are supplemental and do not appear in the Third Edition. Student passwords are printed on the inside cover of the FreeBody Diagram Workbook.

The Statics Study Pack is available as a standalone item. Order standalone Study Packs with the ISBN 0130615749.

MATLAB®/Mathcad® Tutorials. Twenty tutorials showing how to use computational software in engineering mechanics. Each tutorial discusses a basic mechanics concept, and then shows how to solve a specific problem related to this concept using MATLAB/Mathcad. There are twenty tutorials each for MATLAB and Mathcad, and are available in PDF format from the passwordprotected area of the Bedford website. Passwords appear in each student study pack. Worksheets were developed by Ronald Larsen and Stephen Hunt of Montana State UniversityBozeman.

Website contains multiplechoice and True/False quizzes keyed to each chapter in the book developed by Karim Nohra of the University of South Florida. Web Assessment, MATLAB/Mathcad tutorials, and Study Pack questions and solutions are all available at the password protected part of this website. Passwords for the protected portion are printed in the Statics Study Pack.

ESource ACCESS. Students may obtain a password to access to Prentice Hall's ESource, a more than 5000 page online database of Introductory Engineering titles. Topics in the database include mathematics review, MATLAB, Mathcad, Excel, programming languages, engineering design, and many more. This database is fully searchable and available 24 hours a day from the web. Contact either your sales rep or [e-mail] for pricing and bundling options.

Instructor Supplements

Instructor's Solutions Manual with Presentation CD. This supplement available to instructors contains completely worked out solutions. Each solution comes with problem statement as well as associated artwork. The accompanying CD contains PowerPoint slides of art from examples and text passages, as well as pdf files of all art from the book.

Course Management. Prentice Hall will be supporting Bedford/Fowler with several course management options. Contact your sales rep or [e-mail] for complete information including prices and availability dates as well as how to use course management with our web assessment software.

Table of Contents

1. Introduction.

Engineering and Mechanics. Learning Mechanics. Fundamental Concepts. Units. Newtonian Gravitation.

2. Vectors.

Vector Operations and Definitions. 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.

6. Structures in Equilibrium.

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

7. Centroids and Centers of Mass 316.

Centroids. Centroids of Areas. Centroids of Composite Areas. Distributed Loads. Centroids of Volumes and Lines. The Pappus-Guldinus Theorems. Centers of Mass. Definition of the Center of Mass. Centers of Mass of Objects. Centers of Mass of Composite Objects.

8. Moments of Inertia.

Areas. Definitions. Parallel-Axis Theorems. Rotated and Principal Axes. Masses. Simple Objects. Parallel-Axis Theorem.

9. Friction.

Theory of Dry Friction. Applications.

10. Internal Forces and Moments.

Beams. Axial Force, Shear Force, and Bending Moment. Shear Force and Bending Moment Diagrams. Relations Between Distributed Load, Shear Force, and Bending Moment. Cables. Loads Distributed Uniformly Along Straight Lines. Loads Distributed Uniformly Along Cables. Discrete Loads. Liquids and Gasses. Pressure and the Center of Pressure. Pressure in a Stationary Liquid.

11. Virtual Work and Potential Energy.

Virtual Work. Potential Energy.

Appendix A.

Review of Mathematics. Algebra. Trigonometry. Derivatives. Integrals. Taylor Series. Vector Analysis.

Appendix B.

Properties of Areas and Lines. Areas. Lines. Properties of Volumes and Homogeneous Objects.

Answers to Even-Numbered Problems.


Index.