Mechanics of Materials, SI Edition, 11th edition

Published by Pearson (July 31, 2023) © 2023

  • Russell C. Hibbeler



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For undergraduate courses in mechanics of materials.

A proven approach to conceptual understanding and problem-solving skills

Mechanics of Materials excels in providing a clear and thorough presentation of the theory and application of its principles. The text empowers students to succeed by drawing upon the decades of classroom experience Professor Hibbeler has and his knowledge of how students learn. The text is shaped by the comments and suggestions of hundreds of reviewers in the teaching profession, as well as many of his students.

The 11th Edition in SI units features approximately 30% new problems which involve applications to many different fields of engineering. Developed by the author, videos that reinforce learning the basic theories and applying the principles are available on the premium website.

Hallmark features of this title

Key author content enhances conceptual understanding

  • Procedures for Analysis provide a logical, orderly method for analyzing general and specific mechanics problems.
  • Important Points summarize crucial concepts and what should be known to apply the theory to solve problems.
  • End-of-Chapter Reviews provide a concise self-study tool. Each important point is accompanied by the relevant equation and art.

Real-world problem types connect theory to application

  • Conceptual Problems engage students in thinking through a real-life situation depicted in a photo.
  • Free-Body Diagram Problems let students practice key skills in solving equilibrium problems.
  • Homework Problems with various levels of difficulty let students apply their knowledge to realistic situations.

New and updated features of this title

  • UPDATED: Re-written material provides further clarification of concepts and enhanced accuracy.
  • UPDATED: New photos and photorealistic art show how the principles apply to real-world situations and how materials behave under load.
  • UPDATED: Approximately 30% new problems involve applications to many different fields of engineering.
  • UPDATED: End-of-Chapter Review Problems with solutions let students check their work and understanding. Review Problems can also be assigned to test students' skills before class or exams.
  • UPDATED: Improved Fundamental Problems offer more chances for students to practice basic applications and develop their problem-solving skills. Some new Fundamental Problems have been added, along with their partial solutions.

Features of Mastering Engineering for the 11th Edition

  • Tutorial homework problems emulate the instructor's office-hour environment, guiding students through concepts in multi-step problems. Wrong-answer specific feedback is given, along with optional hints to break a problem down further.
  • Video Solutions offer step-by-step solution walkthroughs of representative homework problems from the text.
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Features of Pearson eText for the 11th Edition

  • NEW: Videos, developed by the author, include a variety of new video types that are available for the 11th Edition. Professor Hibbeler expertly demonstrates how to solve problems, models the best way to reach a solution, and gives students extra opportunities to practice honing their problem-solving skills; he also summarizes key concepts from the text, supported by additional figures, animations and photos. For more information on how to access the videos, visit
  1. Stress
    • 1.1 Introduction
    • 1.2 Equilibrium of a Deformable Body
    • 1.3 Stress
    • 1.4 Average Normal Stress in an Axially Loaded Bar
    • 1.5 Average Shear Stress
    • 1.6 Allowable Stress Design
    • 1.7 Limit State Design
  2. Strain
    • 2.1 Deformation
    • 2.2 Strain
  3. Mechanical Properties of Materials
    • 3.1 The Tension and Compression Test
    • 3.2 The Stress--Strain Diagram
    • 3.3 Stress--Strain Behavior of Ductile and Brittle Materials
    • 3.4 Strain Energy
    • 3.5 Poisson's Ratio
    • 3.6 The Shear Stress--Strain Diagram
    • *3.7 Failure of Materials Due to Creep and Fatigue
  4. Axial Load
    • 4.1 Saint-Venant's Principle
    • 4.2 Elastic Deformation of an Axially Loaded Member
    • 4.3 Principle of Superposition
    • 4.4 Statically Indeterminate Axially Loaded Members
    • 4.5 The Force Method of Analysis for Axially Loaded Members
    • 4.6 Thermal Stress
    • 4.7 Stress Concentrations
    • *4.8 Inelastic Axial Deformation
    • *4.9 Residual Stress
  5. Torsion
    • 5.1 Torsional Deformation of a Circular Shaft
    • 5.2 The Torsion Formula
    • 5.3 Power Transmission
    • 5.4 Angle of Twist
    • 5.5 Statically Indeterminate Torque-Loaded Members
    • *5.6 Solid Noncircular Shafts
    • *5.7 Thin-Walled Tubes Having Closed Cross Sections
    • 5.8 Stress Concentration
    • *5.9 Inelastic Torsion
    • *5.10 Residual Stress
  6. Bending
    • 6.1 Shear and Moment Diagrams
    • 6.2 Graphical Method for Constructing Shear and Moment Diagrams
    • 6.3 Bending Deformation of a Straight Member
    • 6.4 The Flexure Formula
    • 6.5 Unsymmetric Bending
    • *6.6 Composite Beams
    • *6.7 Reinforced Concrete Beams
    • *6.8 Curved Beams
    • 6.9 Stress Concentrations
    • *6.10 Inelastic Bending
  7. Transverse Shear
    • 7.1 Shear in Straight Members
    • 7.2 The Shear Formula
    • 7.3 Shear Flow in Built-Up Members
    • 7.4 Shear Flow in Thin-Walled Members
    • *7.5 Shear Center for Open Thin-Walled Members
  8. Combined Loadings
    • 8.1 Thin-Walled Pressure Vessels
    • 8.2 State of Stress Caused by Combined Loadings
  9. Stress Transformation
    • 9.1 Plane-Stress Transformation
    • 9.2 General Equations of Plane-Stress Transformation
    • 9.3 Principal Stresses and Maximum In-Plane Shear Stress
    • 9.4 Mohr's Circle-Plane Stress
    • 9.5 Absolute Maximum Shear Stress
  10. Strain Transformation
    • 10.1 Plane Strain
    • 10.2 General Equations of Plane-Strain Transformation
    • *10.3 Mohr's Circle-Plane Strain
    • *10.4 Absolute Maximum Shear Strain
    • 10.5 Strain Rosettes
    • 10.6 Material Property Relationships
    • *10.7 Theories of Failure
  11. Design of Beams and Shafts
    • 11.1 Basis for Beam Design
    • 11.2 Prismatic Beam Design
    • *11.3 Fully Stressed Beams
    • *11.4 Shaft Design
  12. Deflection of Beams and Shafts
    • 12.1 The Elastic Curve
    • 12.2 Slope and Displacement by Integration
    • *12.3 Discontinuity Functions
    • *12.4 Slope and Displacement by the Moment-Area Method
    • 12.5 Method of Superposition
    • 12.6 Statically Indeterminate Beams and Shafts
    • 12.7 Statically Indeterminate Beams and Shafts - Method of Integration
    • *12.8 Statically Indeterminate Beams and Shafts - Moment-Area Method
    • 12.9 Statically Indeterminate Beams and Shafts - Method of Superposition
  13. Buckling of Columns
    • 13.1 Critical Load
    • 13.2 Ideal Column with Pin Supports
    • 13.3 Columns Having Various Types of Supports
    • *13.4 The Secant Formula
    • *13.5 Inelastic Buckling
    • *13.6 Design of Columns for Concentric Loading
    • *13.7 Design of Columns for Eccentric Loading
  14. Energy Methods
    • 14.1 External Work and Strain Energy
    • 14.2 Elastic Strain Energy for Various Types of Loading
    • 14.3 Impact Loading
    • *14.4 Principle of Virtual Work
    • *14.5 Method of Virtual Forces Applied to Trusses
    • *14.6 Method of Virtual Forces Applied to Beams
    • *14.7 Castigliano's Theorem
    • *14.8 Castigliano's Theorem Applied to Trusses
    • *14.9 Castigliano's Theorem Applied to Beams


  1. Geometric Properties of an Area
  2. Geometric Properties of Structural Shapes
  3. Slopes and Deflections of Beams

Fundamental Problems Partial Solutions and Answers 

Selected Answers


Sections of the book that contain more advanced material are indicated by a star (*).

R. C. Hibbeler graduated from the University of Illinois at Urbana with a BS in Civil Engineering (majoring in Structures) and an MS in Nuclear Engineering. He obtained his PhD in Theoretical and Applied Mechanics from Northwestern University. Professor Hibbeler's professional experience includes postdoctoral work in reactor safety and analysis at Argonne National Laboratory, and structural and stress analysis work at Chicago Bridge and Iron, as well as at Sargent and Lundy in Chicago. He has practiced engineering in Ohio, New York, and Louisiana.

Professor Hibbeler currently teaches both civil and mechanical engineering courses at the University of Louisiana—Lafayette. In the past, he has taught at the University of Illinois at Urbana, Youngstown State University, Illinois Institute of Technology, and Union College.

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