Mechanics of Materials, Enhanced 9th edition

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Barry Goodno and James Gere
Publisher: Cengage Learning

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  • Chapter 1: Tension, Compression, and Shear
    • 1.1: Introduction to Mechanics of Materials
    • 1.2: Problem-Solving Approach
    • 1.3: Statics Review (34)
    • 1.4: Normal Stress and Strain (17)
    • 1.5: Mechanical Properties of Materials (7)
    • 1.6: Elasticity, Plasticity, and Creep (7)
    • 1.7: Linear Elasticity, Hooke's Law, and Poisson's Ratio (10)
    • 1.8: Shear Stress and Strain (24)
    • 1.9: Allowable Stresses and Allowable Loads (18)
    • 1.10: Design For Axial Loads and Direct Shear (19)
    • 1: Active Examples (3)
    • 1: Chapter Quiz (52)

  • Chapter 2: Axially Loaded Members
    • 2.1: Introduction
    • 2.2: Changes in Lengths of Axially Loaded Members (19)
    • 2.3: Changes in Lengths under Nonuniform Conditions (31)
    • 2.4: Statically Indeterminate Structures (24)
    • 2.5: Thermal Effects, Misfits, and Prestrains (30)
    • 2.6: Stresses on Inclined Sections (14)
    • 2.7: Strain Energy
    • 2.8: Impact Loading
    • 2.9: Repeated Loading and Fatigue
    • 2.10: Stress Concentrations
    • 2.11: Nonlinear Behavior
    • 2.12: Elastoplastic Analysis
    • 2: Active Examples (2)
    • 2: Chapter Quiz (50)

  • Chapter 3: Torsion
    • 3.1: Introduction
    • 3.2: Torsional Deformations of a Circular Bar (2)
    • 3.3: Circular Bars of Linearly Elastic Materials (9)
    • 3.4: Nonuniform Torsion (7)
    • 3.5: Stresses and Strains in Pure Shear (5)
    • 3.6: Relationship Between Moduli of Elasticity E and G
    • 3.7: Transmission of Power by Circular Shafts (3)
    • 3.8: Statistically Indeterminate Torsional Members (6)
    • 3.9: Strain Energy in Torsion and Pure Shear
    • 3.10: Torsion of Noncircular Prismatic Shafts
    • 3.11: Thin-Walled Tubes
    • 3.12: Stress Concentrations in Torsion
    • 3: Active Examples (2)
    • 3: Chapter Quiz (63)

  • Chapter 4: Shear Forces and Bending Moments
    • 4.1: Introduction
    • 4.2: Types of Beams, Loads, and Reactions
    • 4.3: Shear Forces and Bending Moments (7)
    • 4.4: Relationships Among Loads, Shear Forces, and Bending Moments
    • 4.5: Shear-Force and Bending-Moment Diagrams (9)
    • 4: Active Examples (2)
    • 4: Chapter Quiz (27)

  • Chapter 5: Stresses in Beams (Basic Topics)
    • 5.1: Introduction
    • 5.2: Pure Bending and Nonuniform Bending
    • 5.3: Curvature of a Beam
    • 5.4: Longitudinal Strains in Beams (4)
    • 5.5: Normal Stress in Beams (Linearly Elastic Materials) (8)
    • 5.6: Design of Beams for Bending Stresses (11)
    • 5.7: Nonprismatic Beams (2)
    • 5.8: Shear Stresses in Beams of Rectangular Cross Section (6)
    • 5.9: Shear Stresses in Beams of Circular Cross Section (4)
    • 5.10: Shear Stresses in the Webs of Beams with Flanges (2)
    • 5.11: Built-Up Beams and Shear Flow (4)
    • 5.12: Beams with Axial Loads (6)
    • 5.13: Stress Concentrations in Bending (1)
    • 5: Active Examples (2)
    • 5: Chapter Quiz (62)

  • Chapter 6: Stresses in Beams (Advanced Topics)
    • 6.1: Introduction
    • 6.2: Composite Beams (6)
    • 6.3: Transformed-Section Method (6)
    • 6.4: Doubly Symmetric Beams with Inclined Loads (4)
    • 6.5: Bending of Unsymmetric Beams (3)
    • 6.6: The Shear-Center Concept
    • 6.7: Shear Stresses in Beams of Thin-Walled Open Cross Sections
    • 6.8: Shear Stresses in Wide-Flange Beams (1)
    • 6.9: Shear Centers of Thin-Walled Open Sections (2)
    • 6.10: Elastoplastic Bending (2)
    • 6: Active Examples (2)
    • 6: Chapter Quiz (51)

  • Chapter 7: Analysis of Stress and Strain
    • 7.1: Introduction
    • 7.2: Plane Stress (10)
    • 7.3: Principal Stresses and Maximum Shear Stresses (7)
    • 7.4: Mohr's Circle for Plane Stress (5)
    • 7.5: Hooke's Law for Plane Stress (6)
    • 7.6: Triaxial Stress (4)
    • 7.7: Plane Strain (5)
    • 7: Active Examples (2)
    • 7: Chapter Quiz (38)

  • Chapter 8: Applications of Plane Stress (Pressure Vessels, Beams, and Combined Loadings)
    • 8.1: Introduction
    • 8.2: Spherical Pressure Vessels (6)
    • 8.3: Cylindrical Pressure Vessels (5)
    • 8.4: Maximum Stresses in Beams (8)
    • 8.5: Combined Loadings (13)
    • 8: Active Examples (2)
    • 8: Chapter Quiz (28)

  • Chapter 9: Deflections of Beams
    • 9.1: Introduction
    • 9.2: Differential Equations of the Deflection Curve
    • 9.3: Deflections by Integration of the Bending-Moment Equation (8)
    • 9.4: Deflections by Integration of the Shear-Force and Load Equations (4)
    • 9.5: Method of Superposition (13)
    • 9.6: Moment-Area Method
    • 9.7: Nonprismatic Beams (2)
    • 9.8: Strain Energy of Bending
    • 9.9: Castigliano's Theorem
    • 9.10: Deflections Produced by Impact
    • 9.11: Temperature Effects (3)
    • 9: Active Examples (2)
    • 9: Chapter Quiz (52)

  • Chapter 10: Statically Indeterminate Beams
    • 10.1: Introduction
    • 10.2: Types of Statically Indeterminate Beams
    • 10.3: Analysis by the Differential Equations of the Deflection Curve (6)
    • 10.4: Method of Superposition (14)
    • 10.5: Temperature Effects (2)
    • 10.6: Longitudinal Displacements at the Ends of a Beam (1)
    • 10: Active Examples (2)
    • 10: Chapter Quiz (26)

  • Chapter 11: Columns
    • 11.1: Introduction
    • 11.2: Buckling and Stability (3)
    • 11.3: Columns with Pinned Ends (9)
    • 11.4: Columns with Other Support Conditions (5)
    • 11.5: Columns with Eccentric Axial Loads (4)
    • 11.6: The Secant Formula for Columns (2)
    • 11.7: Elastic and Inelastic Column Behavior
    • 11.8: Inelastic Buckling
    • 11.9: Design Formulas for Columns
    • 11: Active Examples (2)
    • 11: Chapter Quiz (51)

  • Chapter D: Appendix D: Review of Centroids and Moments of Inertia
    • D.1: Centroids of Plane Areas (1)
    • D.2: Centroids of Composite Areas (4)
    • D.3: Moments of Inertia of Plane Areas (2)
    • D.4: Parallel-Axis Theorem for Moments of Inertia (3)
    • D.5: Polar Moments of Inertia (1)
    • D.6: Products of Inertia (3)
    • D.7: Rotation of Axes (2)
    • D.8: Principal Axes and Principal Moments of Inertia (4)
    • D: Active Examples (2)
    • D: Chapter Quiz (52)


Give students a rigorous, complete, and integrated treatment of the mechanics of materials‐an essential subject in mechanical, civil, and structural engineering. The enhanced 9th edition of Goodno/Gere's Mechanics of Materials examines the analysis and design of structural members subjected to tension, compression, torsion, and bending‐laying the foundation for further study. Available via WebAssign is MindTap Reader, Cengage's next-generation eBook, and other digital resources.

Meet the Authors

Barry J. Goodno, Georgia Institute of Technology
Barry John Goodno is Professor of Civil and Environmental Engineering at Georgia Institute of Technology. He joined the Georgia Tech faculty in 1974. He was an Evans Scholar and received his B.S. in Civil Engineering from the University of Wisconsin, Madison, and his M.S. and Ph.D. degrees in Structural Engineering from Stanford University. He holds a professional engineering license (P.E.) in Georgia, is a Distinguished Member of ASCE and an Inaugural Fellow of SEI and has held numerous leadership positions within ASCE. He is a member of the Engineering Mechanics Institute (EMI) of ASCE and is a past president of the ASCE Structural Engineering Institute (SEI) Board of Governors. He is also past-chair of the ASCE-SEI Technical Activities Division (TAD) Executive Committee and past-chair of the ASCE-SEI Awards Committee. In 2002, Dr. Goodno received the SEI Dennis L. Tewksbury Award for outstanding service to ASCE-SEI. He received the departmental award for Leadership in Use of Technology in 2013 for his pioneering use of lecture capture technologies in undergraduate statics and mechanics of materials courses at Georgia Tech. Dr. Goodno is also a member of the Earthquake Engineering Research Institute (EERI) and has held leadership positions within the NSF-funded Mid-America Earthquake Center (MAE), directing the MAE Memphis Test Bed Project. Dr. Goodno has carried out research, taught graduate courses and published extensively in areas of earthquake engineering and structural dynamics during his tenure at Georgia Tech. Like co-author and mentor James Gere, he has completed numerous marathons including qualifying for and running the Boston Marathon in 1987.

James M. Gere
James M. Gere (1925-2008) earned his undergraduate and M.A. degrees in Civil Engineering from the Rensselaer Polytechnic Institute, where he worked as instructor and research associate. He was awarded one of the first NSF Fellowships and studied at Stanford, where he earned his Ph.D. He joined the faculty in Civil Engineering, beginning a 34-year career of engaging his students in mechanics, structural and earthquake engineering. Dr. Gere served as Department Chair and Associate Dean of Engineering and co-founded the John A. Blume Earthquake Engineering Center at Stanford. Dr. Gere also founded the Stanford Committee on Earthquake Preparedness. He was one of the first foreigners invited to study the earthquake-devastated city of Tangshan, China. Although he retired in 1988, Dr. Gere continued to be an active, valued member of the Stanford community. Known for his cheerful personality, athleticism and skill as an educator, Dr. Gere authored nine texts on engineering subjects starting with this leading book, Mechanics of Materials, which was inspired by teacher and mentor Stephan P. Timoshenko. His other well-known textbooks, used in engineering courses around the world, include: Theory of Elastic Stability, co-authored with S. Timoshenko; Matrix Analysis of Framed Structures and Matrix Algebra for Engineers, both co-authored with W. Weaver; Moment Distribution; Earthquake Tables: Structural and Construction Design Manual, co-authored with H. Krawinkler; and Terra Non Firma: Understanding and Preparing for Earthquakes, co-authored with H. Shah. In 1986 he hiked to the base camp of Mount Everest, saving the life of a companion on the trip. An avid runner, Dr. Gere completed the Boston Marathon at age 48 in a time of 3:13. Dr. Gere is remembered as a considerate and loving man whose upbeat humor always made aspects of daily life and work easier.

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Group Quantity Questions
Chapter D: Appendix D: Review of Centroids and Moments of Inertia
D.AE 2 002 005
D.CQ 52 POST.001 POST.002 POST.003 POST.004 POST.005 POST.006 POST.007 POST.008 POST.009 POST.010 POST.011 POST.012 POST.013 POST.014 POST.015 POST.016 POST.017 POST.018 POST.019 POST.020 POST.021 POST.022 POST.023 POST.024 POST.025 POST.026 PRE.001 PRE.002 PRE.003 PRE.004 PRE.005 PRE.006 PRE.007 PRE.008 PRE.009 PRE.010 PRE.011 PRE.012 PRE.013 PRE.014 PRE.015 PRE.016 PRE.017 PRE.018 PRE.019 PRE.020 PRE.021 PRE.022 PRE.023 PRE.024 PRE.025 PRE.026
D.1 1 002
D.2 4 003 005 006 008
D.3 2 007 008
D.4 3 005 006 008
D.5 1 003
D.6 3 003 004 006
D.7 2 004 005
D.8 4 003 004 005 008
Chapter 1: Tension, Compression, and Shear
1.AE 3 006 012.alt 012a-c 012d-g
1.CQ 52 POST.001 POST.002 POST.003 POST.004 POST.005 POST.006 POST.007 POST.008 POST.009 POST.010 POST.011 POST.012 POST.013 POST.014 POST.015 POST.016 POST.017 POST.018 POST.019 POST.020 POST.021 POST.022 POST.023 POST.024 POST.025 POST.026 PRE.001 PRE.002 PRE.003 PRE.004 PRE.005 PRE.006 PRE.007 PRE.008 PRE.009 PRE.010 PRE.011 PRE.012 PRE.013 PRE.014 PRE.015 PRE.016 PRE.017 PRE.018 PRE.019 PRE.020 PRE.021 PRE.022 PRE.023 PRE.024 PRE.025 PRE.026
1.3 34 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034
1.4 17 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017
1.5 7 001 002 003 004 005 006 007
1.6 7 001 002 003 004 005 006 007
1.7 10 001 002 003 004 005 006 007 008 009 010
1.8 24 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024
1.9 18 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018
1.10 19 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019
Chapter 2: Axially Loaded Members
2.AE 2 003 014
2.CQ 50 POST.001 POST.002 POST.003 POST.004 POST.005 POST.006 POST.007 POST.008 POST.009 POST.010 POST.011 POST.012 POST.013 POST.014 POST.015 POST.016 POST.017 POST.018 POST.019 POST.020 POST.021 POST.022 POST.023 POST.024 POST.025 PRE.001 PRE.002 PRE.003 PRE.004 PRE.005 PRE.006 PRE.007 PRE.008 PRE.009 PRE.010 PRE.011 PRE.012 PRE.013 PRE.014 PRE.015 PRE.016 PRE.017 PRE.018 PRE.019 PRE.020 PRE.021 PRE.022 PRE.023 PRE.024 PRE.025
2.2 19 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021
2.3 31 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031
2.4 24 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024
2.5 30 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 031
2.6 14 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022
2.7 001 002 003 004 005 006 007 008 009 010 011 012
2.8 001 002 003 004 005 006 007 008 009 010 011 012 013 014
2.10 001 002 003 004 005 006 007
2.11 001 002 003 004 005 006
2.12 001 002 003 004 005 006 007 008 009 010 011
Chapter 3: Torsion
3.AE 2 002 009
3.CQ 63 POST.001 POST.002 POST.003 POST.004 POST.005 POST.006 POST.007 POST.008 POST.009 POST.010 POST.011 POST.012 POST.013 POST.014 POST.015 POST.016 POST.017 POST.018 POST.019 POST.020 POST.021 POST.022 POST.023 POST.024 POST.025 POST.026 POST.027 POST.028 POST.029 POST.030 POST.031 POST.032 PRE.001 PRE.002 PRE.003 PRE.004 PRE.005 PRE.006 PRE.007 PRE.008 PRE.009 PRE.010 PRE.011 PRE.012 PRE.013 PRE.014 PRE.015 PRE.016 PRE.017 PRE.018 PRE.019 PRE.020 PRE.021 PRE.022 PRE.023 PRE.024 PRE.025 PRE.026 PRE.027 PRE.028 PRE.029 PRE.030 PRE.031
3.2 2 003 006
3.3 9 002 003 004 008 009 011 014 019 020
3.4 7 003 006 008 009 018 019 022
3.5 5 002 003 006 009 012
3.7 3 002 006 011
3.8 6 005 009 010 012 014 016
Chapter 4: Shear Forces and Bending Moments
4.AE 2 006 009
4.CQ 27 POST.001 POST.002 POST.003 POST.004 POST.005 POST.006 POST.007 POST.008 POST.009 POST.010 POST.011 POST.012 POST.013 PRE.001 PRE.002 PRE.003 PRE.004 PRE.005 PRE.006 PRE.007 PRE.008 PRE.009 PRE.010 PRE.011 PRE.012 PRE.013 PRE.014
4.3 7 004 007 012 015 020 022 025
4.5 9 003 004 005 008 017 018 022 028 032
Chapter 5: Stresses in Beams (Basic Topics)
5.AE 2 007 011
5.CQ 62 POST.001 POST.002 POST.003 POST.004 POST.005 POST.006 POST.007 POST.008 POST.009 POST.010 POST.011 POST.012 POST.013 POST.014 POST.015 POST.016 POST.017 POST.018 POST.019 POST.020 POST.021 POST.022 POST.023 POST.024 POST.025 POST.026 POST.027 POST.028 POST.029 POST.030 POST.031 PRE.001 PRE.002 PRE.003 PRE.004 PRE.005 PRE.006 PRE.007 PRE.008 PRE.009 PRE.010 PRE.011 PRE.012 PRE.013 PRE.014 PRE.015 PRE.016 PRE.017 PRE.018 PRE.019 PRE.020 PRE.021 PRE.022 PRE.023 PRE.024 PRE.025 PRE.026 PRE.027 PRE.028 PRE.029 PRE.030 PRE.031
5.4 4 001 002 006 008
5.5 8 004 005 006 013 018 019 023 024
5.6 11 001 002 006 007 011 014 015 019 021 022 023
5.7 2 003 006
5.8 6 003 005 006 009 012 014
5.9 4 002 003 004 005
5.10 2 008 012
5.11 4 001 003 005 008
5.12 6 002 004 010 014 018 019
5.13 1 005
Chapter 6: Stresses in Beams (Advanced Topics)
6.AE 2 001 003
6.CQ 51 POST.001 POST.002 POST.003 POST.004 POST.005 POST.006 POST.007 POST.008 POST.009 POST.010 POST.011 POST.012 POST.013 POST.014 POST.015 POST.016 POST.017 POST.018 POST.019 POST.020 POST.021 POST.022 POST.023 POST.024 POST.025 POST.026 POST.027 PRE.001 PRE.002 PRE.003 PRE.004 PRE.005 PRE.006 PRE.007 PRE.008 PRE.009 PRE.010 PRE.011 PRE.012 PRE.013 PRE.014 PRE.015 PRE.016 PRE.017 PRE.018 PRE.019 PRE.020 PRE.021 PRE.022 PRE.023 PRE.024
6.2 6 006 007 011 012 015 017
6.3 6 010 012 013 014 015 018
6.4 4 002 011 014 016
6.5 3 001 006 012
6.8 1 003
6.9 2 001 002
6.10 2 003 017
Chapter 7: Analysis of Stress and Strain
7.AE 2 005 007
7.CQ 38 POST.001 POST.002 POST.003 POST.004 POST.005 POST.006 POST.007 POST.008 POST.009 POST.010 POST.011 POST.012 POST.013 POST.014 POST.015 POST.016 POST.017 POST.018 POST.019 PRE.001 PRE.002 PRE.003 PRE.004 PRE.005 PRE.006 PRE.007 PRE.008 PRE.009 PRE.010 PRE.011 PRE.012 PRE.013 PRE.014 PRE.015 PRE.016 PRE.017 PRE.018 PRE.019
7.2 10 002 008 009 012 013 016 017 021 026 027
7.3 7 008 012 014 016 025 027 028
7.4 5 003 009 011 016 023
7.5 6 002 006 010 012 015 016
7.6 4 002 007 011 014
7.7 5 002 003 016 021 022
Chapter 8: Applications of Plane Stress (Pressure Vessels, Beams, and Combined Loadings)
8.AE 2 002 003
8.CQ 28 POST.001 POST.002 POST.003 POST.004 POST.005 POST.006 POST.007 POST.008 POST.009 POST.010 POST.011 POST.012 POST.013 POST.014 PRE.001 PRE.002 PRE.003 PRE.004 PRE.005 PRE.006 PRE.007 PRE.008 PRE.009 PRE.010 PRE.011 PRE.012 PRE.013 PRE.014
8.2 6 003 006 008 009 012 013
8.3 5 004 006 008 012 014
8.4 8 002 006 007 010 013 014 019 020
8.5 13 002 003 006 008 009 012 014 019 026 027 028 032 035
Chapter 9: Deflections of Beams
9.AE 2 003 019
9.CQ 52 POST.001 POST.002 POST.003 POST.004 POST.005 POST.006 POST.007 POST.008 POST.009 POST.010 POST.011 POST.012 POST.013 POST.014 POST.015 POST.016 POST.017 POST.018 POST.019 POST.020 POST.021 POST.022 POST.023 POST.024 POST.025 POST.026 PRE.001 PRE.002 PRE.003 PRE.004 PRE.005 PRE.006 PRE.007 PRE.008 PRE.009 PRE.010 PRE.011 PRE.012 PRE.013 PRE.014 PRE.015 PRE.016 PRE.017 PRE.018 PRE.019 PRE.020 PRE.021 PRE.022 PRE.023 PRE.024 PRE.025 PRE.026
9.3 8 003 005 007 015 016 020 021 022
9.4 4 003 008 009 010
9.5 13 001 003 006 007 013 015 016 019 020 023 031 036 043
9.7 2 003 006
9.11 3 003 004 005
Chapter 10: Statically Indeterminate Beams
10.AE 2 003 007
10.CQ 26 POST.001 POST.002 POST.003 POST.004 POST.005 POST.006 POST.007 POST.008 POST.009 POST.010 POST.011 POST.012 POST.013 PRE.001 PRE.002 PRE.003 PRE.004 PRE.005 PRE.006 PRE.007 PRE.008 PRE.009 PRE.010 PRE.011 PRE.012 PRE.013
10.3 6 002 007 009 012 014 015
10.4 14 005 006 007 009 018 019 021 022 024 028 029 036 041 043
10.5 2 002 004
10.6 1 001
Chapter 11: Columns
11.AE 2 002 003
11.CQ 51 POST.001 POST.002 POST.003 POST.004 POST.005 POST.006 POST.007 POST.008 POST.009 POST.010 POST.011 POST.012 POST.013 POST.014 POST.015 POST.016 POST.017 POST.018 POST.019 POST.020 POST.021 POST.022 POST.023 POST.024 POST.025 PRE.001 PRE.002 PRE.003 PRE.004 PRE.005 PRE.006 PRE.007 PRE.008 PRE.009 PRE.010 PRE.011 PRE.012 PRE.013 PRE.014 PRE.015 PRE.016 PRE.017 PRE.018 PRE.019 PRE.020 PRE.021 PRE.022 PRE.023 PRE.024 PRE.025 PRE.026
11.2 3 006 007 013
11.3 9 002 006 007 008 009 014 015 018 026
11.4 5 009 012 013 014 015
11.5 4 003 008 009 012
11.6 2 008 012
Total 1116 (61)