Applied Strength of Materials for Engineering Technology
152 pág.

Applied Strength of Materials for Engineering Technology


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Indiana University \u2013 Purdue University Fort Wayne
Opus: Research & Creativity at IPFW
Manufacturing and Construction Engineering
Technology and Interior Design Faculty
Publications
Department of Manufacturing and Construction
Engineering Technology and Interior Design
8-2014
Applied Strength of Materials for Engineering
Technology
Barry Dupen
IPFW, dupenb@ipfw.edu
Follow this and additional works at: http://opus.ipfw.edu/mcetid_facpubs
Part of the Applied Mechanics Commons
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Opus Citation
Barry Dupen (2014). Applied Strength of Materials for Engineering Technology. 6 ed.
http://opus.ipfw.edu/mcetid_facpubs/35
Applied Strength of Materials for 
Engineering Technology
Barry Dupen
Associate Professor, Mechanical Engineering Technology, Indiana University \u2013 Purdue University Fort Wayne
v.6 Revised August 2014. This work is licensed under Creative Commons Attribution-ShareAlike 4.0 
International (CC BY-SA 4.0) See creativecommons.org for license details.
1
Table of Contents
Preface...............................................................................................3
Purpose of the Book....................................................................3
Editors.........................................................................................4
Cover Photos...............................................................................4
Terminology......................................................................................5
Definitions.........................................................................................7
Chapter 1: Introduction to Strength of Materials.............................9
What is Strength of Materials?...................................................9
The Factor-Label Method of Unit Conversion........................10
Chapter 2: Stress and Strain............................................................14
Normal Stress and Strain..........................................................14
Sign Convention.......................................................................17
Shear Stress and Strain.............................................................17
Chapter 3: Poisson's Ratio and Thermal Expansion......................20
Poisson's Ratio..........................................................................20
Thermal Expansion and Thermal Stress..................................22
Chapter 4: Pressure Vessels and Stress Concentrations................25
Thin-Walled Pressure Vessels..................................................25
Stress Concentration in Tension...............................................27
Chapter 5: Bolted and Welded Joints.............................................30
Bolted Lap Joints Loaded in Tension......................................30
Welded Lap Joints....................................................................35
Chapter 6: Properties of Areas........................................................38
Dimensions and Area................................................................38
Centroid and Centroidal Axes..................................................38
Moment of Inertia of a Rectangle............................................38
Compound Beams Sharing a Centroidal Axis.........................39
Hollow Beams Sharing a Centroidal Axis...............................40
The Transfer Formula...............................................................41
Compound Beams With Different Neutral Axes.....................42
Hollow Beams With Different Neutral Axes...........................45
Moment of Inertia about the y-y Neutral Axis........................48
Shortcuts....................................................................................51
Radius of Gyration....................................................................51
Polar Moment of Inertia...........................................................51
Chapter 7: Torsion in Round Shafts...............................................52
Shear Stress in a Round Shaft..................................................52
Angle of Twist in a Round Shaft..............................................53
Stress Concentration in Torsion...............................................54
Chapter 8: Beam Reactions, Shear Diagrams, and Moment 
Diagrams..........................................................................................56
Loads on Beams........................................................................56
Reactions for Simply-Supported Simple Beams.....................57
Reactions for Overhanging and Cantilever Beams..................60
Shear Diagrams.........................................................................61
Moment Diagrams....................................................................67
Chapter 9: Stresses in Beams..........................................................73
Bending Stress in Beams..........................................................73
Bending Stress in Steel Beams.................................................75
Shear Stress in Beams...............................................................77
Allowable Load.........................................................................82
Chapter 10: Beam Deflection.........................................................84
Radius of Curvature..................................................................84
The Formula Method for Simple Cases...................................85
Formula Method Hints..............................................................87
The Formula Method for Complex Cases: Superposition.......87
Visualizing the Deflection Curve.............................................89
Chapter 11: Beam Design...............................................................90
Wide-Flange Steel Beam Design in Six Easy Steps................90
Timber Beam Design in Six Easy Steps..................................96
Chapter 12: Combined Stresses......................................................99
Tension + Bending....................................................................99
Bending in Two Directions......................................................99
Eccentric Loading...................................................................101
Chapter 13: Statically Indeterminate Beams................................104
Defining Determinate and Indeterminate Beams..................104
Method of Superposition........................................................104
Chapter 14: Buckling of Columns................................................108
Types of Columns...................................................................108
Ideal Slender Columns...........................................................108
Structural Steel Columns........................................................110
Steel Machine Parts................................................................111
Chapter 15: Visualizing Stress and Strain....................................114
Measuring Stress.....................................................................114
Stress at the Base of a Short Block........................................114
Mohr's Circle...........................................................................115
Bibliography..................................................................................128
Textbooks................................................................................128