Applied Strength of Materials / Edition 6 available in Hardcover
Applied Strength of Materials / Edition 6
- ISBN-10:
- 149871675X
- ISBN-13:
- 9781498716758
- Pub. Date:
- 09/27/2016
- Publisher:
- Taylor & Francis
- ISBN-10:
- 149871675X
- ISBN-13:
- 9781498716758
- Pub. Date:
- 09/27/2016
- Publisher:
- Taylor & Francis
Applied Strength of Materials / Edition 6
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Overview
Designed for a first course in strength of materials, Applied Strength of Materials has long been the bestseller for Engineering Technology programs because of its comprehensive coverage, and its emphasis on sound fundamentals, applications, and problem-solving techniques. The combination of clear and consistent problem-solving techniques, numerous end-of-chapter problems, and the integration of both analysis and design approaches to strength of materials principles prepares students for subsequent courses and professional practice. The fully updated Sixth Edition. Built around an educational philosophy that stresses active learning, consistent reinforcement of key concepts, and a strong visual component, Applied Strength of Materials, Sixth Edition continues to offer the readers the most thorough and understandable approach to mechanics of materials.
Product Details
ISBN-13: | 9781498716758 |
---|---|
Publisher: | Taylor & Francis |
Publication date: | 09/27/2016 |
Edition description: | Revised |
Pages: | 834 |
Product dimensions: | 8.10(w) x 10.10(h) x 1.60(d) |
About the Author
Robert L. Mott is professor emeritus of engineering technology at the University of Dayton. He is a member of ASEE, SME, and ASME. He is a Fellow of ASEE and a recipient of the ASEE James H. McGraw Award, Frederick J. Berger Award, and the Archie Higdon Distinguished Educator Award (From Applied Mechanics Division). He is a recipient of the SME Education Award. He holds the Bachelor of Mechanical Engineering degree from General Motors Institute (now Kettering University) and the Master of Science in Mechanical Engineering from Purdue University. His industry experience includes General Motors Corporation, consulting for several companies, and serving as an expert witness on numerous legal cases. He is the author of three textbooks: Applied Fluid Mechanics 7th ed. (co-authored with Joseph A. Untener) and Machine Elements in Mechanical Design 6th ed., published by Pearson/Prentice-Hall; Applied Strength of Materials 6th ed. (co-authored with Joseph A. Untener) with CRC Press.
Joseph A. Untener, P.E. is a professor of engineering technology at the University of Dayton. He is a member of ASEE, SME, and ASME. He holds the Bachelor of Mechanical Engineering degree from General Motors Institute (now Kettering University) and the Master of Science in Industrial Administration from Purdue University. He has worked on the design and implementation of manufacturing equipment at General Motors, and served as an engineering consultant for many other companies. He teaches courses in Mechanical Engineering Technology at UD. He has co-authored two textbooks with Robert L. Mott: Applied Fluid Mechanics 7th ed. published by Pearson/Prentice-Hall, and Applied Strength of Materials 6th ed. with CRC Press.
Table of Contents
Preface
Basic Concepts in Strength of Materials
The Big Picture
Objective of This Book – To Ensure Safety
Objectives of This Chapter
Problem-solving Procedure
Basic Unit Systems
Relationship Among Mass, Force, and Weight
The Concept of Stress
Direct Normal Stress
Stress Elements for Direct Normal Stresses
The Concept of Strain
Direct Shear Stress
Stress Element for Shear Stresses
Preferred Sizes and Standard Shapes
Experimental and Computational Stress
Design Properties of Materials
The Big Picture
Objectives of This Chapter
Design Properties of Materials
Steel
Cast Iron
Aluminum
Copper, Brass, and Bronze
Zinc, Magnesium, Titanium, and Nickel-Based Alloys
Nonmetals in Engineering Design
Wood
Concrete
Plastics
Composites
Materials Selection
Direct Stress, Deformation, and Design
The Big Picture and Activity
Objectives of this Chapter
Design of Members under Direct Tension or Compression
Design Normal Stresses
Design Factor
Design Approaches and Guidelines for Design Factors
Methods of Computing Design Stress
Elastic Deformation in Tension and Compression Members
Deformation Due to Temperature Changes
Thermal Stress
Members Made of More Than One Material
Stress Concentration Factors for Direct Axial Stresses
Bearing Stress
Design Bearing Stress
Design for Direct Shear, Torsional Shear, and Torsional Deformation
The Big Picture
Objectives of This Chapter
Design for Direct Shear Stress
Torque, Power, and Rotational Speed
Torsional Shear Stress in Members with Circular Cross Sections
Development of the Torsional Shear Stress Formula
Polar Moment of Inertia for Solid Circular Bars
Torsional Shear Stress and Polar Moment of Inertia for Hollow Circular Bars
Design of Circular Members under Torsion
Comparison of Solid and Hollow Circular Members
Stress Concentrations in Torsionally Loaded Members
Twisting – Elastic Torsional Deformation
Torsion in Noncircular Sections
Shearing Forces and Bending Moments in Beams
The Big Picture
Objectives of this Chapter
Beam Loading, Supports, and Types of Beams
Reactions at Supports
Shearing Forces and Bending Moments for Concentrated Loads
Guidelines for Drawing Beam Diagrams for Concentrated Loads
Shearing Forces and Bending Moments for Distributed Loads
General Shapes Found in Bending Moment Diagrams
Shearing Forces and Bending Moments for Cantilever Beams
Beams with Linearly Varying Distributed Loads
Free-Body Diagrams of Parts of Structures
Mathematical Analysis of Beam Diagrams
Continuous Beams – Theorem of Three Moments
Centroids and Moments of Inertia of Areas
The Big Picture
Objectives of This Chapter
The Concept of Centroid – Simple Shapes
Centroid of Complex Shapes
The Concept of Moment of Inertia
Moment of Inertia for Composite Shapes Whose Parts have the Same Centroidal Axis
Moment of Inertia for Composite Shapes – General Case – Use of the Parallel Axis Theorem
Mathematical Definition of Moment of Inertia
Composite Sections Made from Commercially Available Shapes
Moment of Inertia for Shapes with all Rectangular Parts
Radius of Gyration
Section Modulus
Stress Due to Bending
The Big Picture
Objectives of This Chapter
The Flexure Formula
Conditions on the Use of the Flexure Formula
Stress Distribution on a Cross Section of a Beam
Derivation of the Flexure Formula
Applications – Beam Analysis
Applications – Beam Design and Design Stresses
Section Modulus and Design Procedures
Stress Concentrations
Flexural Center or Shear Center
Preferred Shapes for Beam Cross Sections
Design of Beams to be Made from Composite Materials
Shearing Stresses in Beams
The Big Picture
Objectives of this Chapter
Importance of Shearing Stresses in Beams
The General Shear Formula
Distribution of Shearing Stress in Beams
Development of the General Shear Formula
Special Shear Formulas
Design for Shear
Shear Flow
Deflection of Beams
The Big Picture
Objectives of this Chapter
The Need for Considering Beam Deflections
General Principles and Definitions of Terms
Beam Deflections Using the Formula Method
Comparison of the Manner of Support for Beams
Superposition Using Deflection Formulas
Successive Integration Method
Moment-Area Method
Combined Stresses
The Big Picture
Objectives of this Chapter
The Stress Element
Stress Distribution Created by Basic Stresses
Creating the Initial Stress Element
Combined Normal Stresses
Combined Normal and Shear Stresses
Equations for Stresses in Any Direction
Maximum Stresses
Mohr’s Circle for Stress
Stress Condition on Selected Planes
Special Case in which Both Principal Stresses have the Same Sign
Use of Strain-Gage Rosettes to Determine Principal Stress Columns
Columns
The Big Picture
Objectives of this Chapter
Slenderness Ratio
Transition Slenderness Ratio
The Euler Formula for Long Columns
The J. B. Johnson Formula for Short Columns
Summary – Buckling Formulas
Design Factors and Allowable Load
Summary – Method of Analyzing Columns
Column Analysis Spreadsheet
Efficient Shapes for Columns
Specifications of the AISC
Specifications of the Aluminum Association
Non-Centrally Loaded Columns
Pressure Vessels
The Big Picture
Objectives of this Chapter
Distinction Between Thin-Walled and Thick-Walled Pressure Vessels
Thin-Walled Spheres
Thin-Walled Cylinders
Thick-Walled Cylinders and Spheres
Analysis and Design Procedures for Pressure Vessels
Spreadsheet Aid for Analyzing Thick-Walled Spheres and Cylinders
Shearing Stress in Cylinders and Spheres
Other Design Considerations for Pressure Vessels
Composite Pressure Vessels
Connections
The Big Picture
Objectives of this Chapter
Modes of Failure for Bolted Joints
Design of Bolted Connections
Riveted Joints
Eccentrically Loaded Riveted and Bolted Joints
Welded Joints with Concentric Loads
Appendix
Answers to Selected Problems
Preface
Objectives of the Book
Applied Strength of Materials, Fourth Edition, provides a comprehensive coverage of the important topics in strength of materials with an emphasis on applications, problem solving, and design of structural members, mechanical devices, and systems. The book is written for the student in a course called Strength of Materials, Mechanics of Materials, or Solid Mechanics in an engineering technology program at the baccalaureate or associate degree level, or in an applied engineering program.
It is the intent of this book to provide good readability for the student, appropriate coverage of the principles of strength of materials for the faculty member teaching the subject, and a problem solving and design approach that is useful for the practicing designer or engineer. Educational programs in the mechanical, civil, construction, and manufacturing fields should find the book to be suitable for an introductory course in strength of materials.
Style
There is a heavy emphasis on the applications of the principles of strength of materials to mechanical, structural, and construction problems while providing a firm foundation of understanding of those principles. At the same time, the limitations on the use of analysis techniques are emphasized to ensure that they are applied properly. Both analysis and design approaches are used in the book.Units are a mixture of SI Metric and U.S. Customary units, in keeping with the dual usage evident in U.S. industry and construction.
Prerequisites
Students are expected to be able to apply the principles of statics prior to using this book. For review, there is a summaryof the main techniques of the analysis of forces and momentum in the Appendix. Several example problems are included that are similar to the statics needed in practice problems in this book.
While not essential, it is recommended that students have completed an introductory course in calculus prior to studying this course. As called for by accrediting agencies, calculus is used to develop the key principles and formulas used in this book. The application of the formulas and most problem solving and design techniques can be accomplished without the use of calculus.
Features of the Book
The Big Picture. Students should see the relevance of the material they study. They should be able to visualize where devices and systems that they are familiar with depend on the principles of strength of materials. For this reason each chapter starts with a section called The Big Picture. Here the basic concepts to be developed in the chapter are identified and students are asked to think about examples from their own experience where these concepts are used. Sometimes they are asked to explore new things on their own to discover how a product works or how it can fail. They are coached to make observations about the behavior of common mechanical devices, vehicles, industrial machinery, consumer products, and structures. Educational philosophy indicates that students learn better and retain more when such methods are employed.
Problem-Solving Techniques. Students must also be able to solve real problems, complete the necessary calculations, manipulate units in equations, seek appropriate data, and make good design decisions. The example problems in this book are designed to help students master these processes. In addition, students must learn to communicate the results of their work to others in the field. One important means of communication is the presentation of the problem solutions in an orderly, well-documented manner using established methods. Example problems are set off with a distinctive graphic design and type font. Readers are guided in the process of formulating an approach to problem solving that includes:
a) Statement of the objective of the problem
b) Summary of the given information
c) Definition of the analysis technique to be used
d) Detailed development of the results with all of the equations used and unit manipulations
e) At times, comments on the solution to remind the reader of the important concepts involved and to judge the appropriateness of the solution.
f) At times, the comments present alternate approaches or improvements to the machine element or structural member being analyzed or designed.
The reader's thought process is carried beyond the requested answer into a critical review of the result. With this process, designers gain good habits of organization when solving their own problems.
Design Approaches. There is much more information about guidelines for design of mechanical devices and structural members than in most books on this subject. The design approaches are based on another book of mine, Machine Elements in Mechanical Design, Third Edition, 1999, from Prentice Hall. Learning about design in addition to analysis increases the usefulness of the book to students and professional users. There are some students who will not go on to a following course that emphasizes design. They should get some introduction to the principles of design in the introductory course in strength of materials. For those who do proceed to a design course, they should enter that course with a higher level of capability.
Extensive Appendix. To complement the use of design approaches, the Appendix provides a large amount of information on material properties, geometry of common areas and commercially available structural shapes, stress concentration factors, formulas for beam deflection, conversion factors, and many others. This allows for a wider variety of problems in the book and for creating tests and projects. It adds to the realism of the book and gives the student practice in looking for the necessary information to solve a problem or to complete a design.
Design Properties of Materials. Chapter 2 includes much information and discussion on the selection and proper application of engineering materials of many types, both metallic and nonmetallic. There is an extensive introduction to the nature of composite materials given along with commentary throughout the book on the application of composites to various kinds of load-carrying members. Readers are given information about the advantages of composites relative to traditional structural materials such as metals, wood, concrete, and plastics. The reader is encouraged to seek more education and experience to learn the unique analysis and design techniques required for the proper application of composite materials. Such materials are, in fact, tailored to a specific application and general tables of material properties are not readily available.
End-of-Chapter Problems. There is an extensive set of problems for student practice at the end of each chapter. They are typically organized around the main topics in the chapter. In general, they are presented in a graded manner with simpler problems followed by more comprehensive problems. With this edition, there are many additional problems at the end of each chapter for practice, review, and design.
Electronic Aids to Problem Solving and Design
Most chapters include computer assignments along with suggestions for the use of spreadsheets, computer programs, computer algebra software, and graphing calculators pertinent to strength of materials. Such electronic aids, when used to supplement the basic understanding of the principles presented in the book, lead to a deeper appreciation of those principles and their application to more problems and more complex problems. Examples of spreadsheets are given in the chapters on column analysis and pressure vessels.
Acknowledgments
I appreciate the feedback provided by both students and instructors who have used the earlier editions of this book. I am also grateful to my colleagues at the University of Dayton. I would like to thank S. David Dvorak, University of Maine, and Robert J. Michael, Penn State (Erie), who reviewed the book and offered helpful suggestions for improvements. I hope this edition has implemented those suggestions in a manner consistent with the overall approach of the book.
Robert L. Mott
University of Dayton