An established best seller in Engineering Technology programs, the seventh edition of Applied Strength of Materials continues to provide comprehensive coverage of the mechanics of materials. Focusing on active learning, and consistently reinforcing key concepts, the book is designed to aid students in their first course on strength of materials.
Introducing the theoretical background of the subject, with a strong visual component, the book equips the reader with problem-solving techniques. The updated seventh edition incorporates new technologies, with a strong pedagogical approach. Emphasizing realistic engineering applications for the analysis and design of structural members, mechanical devices and systems, the book includes topics such as torsional deformation, shearing stresses in beams, pressure vessels and design properties of materials. A "big picture" overview is included at the beginning of each chapter, and step by step problem solving approaches are used throughout the book.
This book will be of interest to students in the field of engineering technology and materials engineering, as an accessible and understandable introduction to a complex field.
Table of Contents
1 Basic Concepts in Strength of Materials The Big Picture 1.1 Objective of This Book: To Ensure Safety 1.2 Objectives of This 1.3 Basic Unit Systems 1.4 Mass, Force, and Weight 1.5 Concept of Stress 1.6 Direct Normal Stress 1.7 Stress Elements for Direct Normal Stresses 1.8 Concept of Strain 1.9 Direct Shear Stress 1.10 Stress Elements for Shear Stresses 1.11 Commercially Available Standard Shapes 1.12 Preferred Sizes and Screw Threads 1.13 Review of the Fundamentals of Statics 2 Design Properties of Materials The Big Picture 2.1 Objectives of This 2.2 Design Properties of Materials 2.3 Steel 2.4 Cast Iron 2.5 Aluminum 2.6 Copper, Brass, and Bronze 2.7 Zinc-, Magnesium-, Titanium-, and Nickel-Based Alloys 2.8 Nonmetals in Engineering Design 2.9 Wood 2.10 Concrete 2.11 Plastics 2.12 Composites 2.13 3D Printed Materials 2-14 Materials Selection 3 Direct Stress, Deformation, and Design The Big Picture 3.1 Objectives of This 3.2 Applied Normal Stress 3.3 Design Normal Stress 3.4 Determination of Design Factor 3.5 Methods of Computing Design Stress 3.6 Elastic Deformation in Tension and Compression Members 3.7 Stress Concentration Factors for Direct Axial Stresses 3.8 Applied Bearing Stress 3.9 Design Bearing Stress 4 Design for Direct Shear, Torsional Shear, and Torsional Deformation The Big Picture 4.1 Objectives of This 4.2 Design Shear Stress 4.3 Transmitting Power through Rotating Shafts 4.4 Applied Torsional Shear Stress in Members with Circular Cross Sections 4.5 Development of the Torsional Shear Stress Formula 4.6 Polar Moment of Inertia for Solid Circular Bars 4.7 Torsional Shear Stress and Polar Moment of Inertia for Hollow Circular Bars 4.8 Design of Circular Members under Torsion 4.9 Comparison of Solid and Hollow Circular Members 4.10 Stress Concentrations in Torsionally Loaded Members 4.11 Twisting: Elastic Torsional Deformation 4.12 Torsion in Noncircular Sections 5 Shearing Forces and Bending Moments in Beams The Big Picture 5.1 Objectives of This 5.2 Beam Loading, Supports, and Types of Beams 5.3 Reactions at Supports 5.4 Shearing Forces and Bending Moments for Concentrated Loads 5.5 Guidelines for Drawing Beam Diagrams for Concentrated Loads 5.6 Shearing Forces and Bending Moments for Distributed Loads 5.7 General Shapes Found in Bending Moment Diagrams 5.8 Shearing Forces and Bending Moments for Cantilever Beams 5.9 Beams with Linearly Varying Distributed Loads 5.10 Free-Body Diagrams of Parts of Structures 5.11 Mathematical Analysis of Beam Diagrams 5.12 Continuous Beams: Theorem of Three Moments 6 Centroids and Moments of Inertia of Areas The Big Picture 6.1 Objectives of This 6.2 Concept of Centroid: Simple Shapes 6.3 Centroid of Complex Shapes 6.4 Concept of Moment of Inertia of an Area 6.5 Moment of Inertia of Composite Shapes Whose Parts Have the Same Centroidal Axis 6.6 Moment of Inertia for Composite Shapes: General Case—Use of the Parallel Axis Theorem 6.7 Mathematical Definition of Moment of Inertia 6.8 Composite Sections Made from Commercially Available Shapes 6.9 Moment of Inertia for Shapes with All Rectangular Parts 6.10 Radius of Gyration 6.11 Section Modulus 7 Stress due to Bending The Big Picture 7.1 Objectives of This 7.2 Flexure Formula 7.3 Conditions on the Use of the Flexure Formula 7.4 Stress Distribution on a Cross Section of a Beam 7.5 Derivation of the Flexure Formula 7.6 Applications: Analysis of Stresses in Beams 7.7 Applications: Beam Design and Design Stresses 7.8 Section Modulus and Design Procedures 7.9 Stress Concentrations 7.10 Flexural Center or Shear Center 7.11 Preferred Shapes for Beam Cross Sections 7.12 Design of Beams to Be Made from Composite Materials 8 Shearing Stresses in Beams The Big Picture 8.1 Objectives of This 8.2 Importance of Shearing Stresses in Beams 8.3 General Shear Formula 8.4 Distribution of Shearing Stress in Beams 8.5 Development of the General Shear Formula 8.6 Special Shear Formulas 8.7 Design for Shear 8.8 Shear Flow 9 Deflection of Beams The Big Picture 9.1 Objectives of This 9.2 Need for Considering Beam Deflections 9.3 General Principles and Definitions of Terms 9.4 Beam Deflections Using the Formula Method 9.5 Comparison of the Manner of Support for Beams 9.6 Superposition Using Deflection Formulas 9.7 Successive Integration Method 9.8 Moment.Area Method 10 Combined Stresses The Big Picture 10.1 Objectives of This 10.2 Stress Element 10.3 Stress Distribution Created by Basic Stresses 10.4 Creating the Initial Stress Element 10.5 Combined Normal Stresses 10.6 Combined Normal and Shear Stresses 10.7 Equations for Stresses in Any Direction 10.8 Maximum and Minimum Stresses 10.9 Mohr’s Circle for Stress 10.10 Stress Condition on Selected Planes 10.11 Special Case in Which Both Principal Stresses Have the Same Sign 10.12 Use of Strain-Gage Rosettes to Determine Principal Stresses 11 Columns The Big Picture 11.1 Objectives of This 11.2 Slenderness Ratio 11.3 Transition Slenderness Ratio 11.4 Euler Formula for Long Columns 11.5 J.B. Johnson Formula for Short Columns 11.6 Summary: Buckling Formulas 11.7 Design Factors for Columns and Allowable Load 11.8 Summary: Method of Analyzing Columns 11.9 Column Analysis Spreadsheet 11.10 Efficient Shapes for Column Cross Sections 11.11 Specifications of the AISC 11.12 Specifications of the Aluminum Association 11.13 Noncentrally Loaded Columns 12 Pressure Vessels The Big Picture 12.1 Objectives of This 12.2 Distinction between Thin-Walled and Thick-Walled Pressure Vessels 12.3 Thin-Walled Spheres 12.4 Thin-Walled Cylinders 12.5 Thick-Walled Cylinders and Spheres 12.6 Analysis and Design Procedures for Pressure Vessels 12.7 Spreadsheet Aid for Analyzing Thick-Walled Spheres and Cylinders 12.8 Shearing Stress in Cylinders and Spheres 12.9 Other Design Considerations for Pressure Vessels 12.10 Composite Pressure Vessels 13 Connections The Big Picture 13.1 Objectives of This 13.2 Modes of Failure for Bolted Joints 13.3 Design of Bolted Connections 13.4 Riveted Joints 13.5 Eccentrically Loaded Riveted and Bolted Joints 13.6 Welded Joints with Concentric Loads 14 Thermal Effects and Elements of More Than One Material The Big Picture 14.1 Objectives of This 14.2 Deformation Due to Temperature Change 14.3 Thermal Stress Due to Temperature Change 14.4 Members Made of More Than One Material Appendix
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.