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Experimental Stress Analysis

Book Description

Experimental Stress Analysis deals with different aspects of stress analysis, highlighting basic and advanced concepts, with a separate chapter on aircraft structures. The inclusion of a large number of figures, tables, and solved problems ensure a clear and thorough understanding of the concepts. Designed for undergraduate students of mechanical engineering, this takes into account the syllabi of various universities and technical institutions.

Table of Contents

  1. Cover
  2. Title page
  3. Contents
  4. About the Author
  5. Dedication
  6. Preface
  7. Chapter 1. Elementary Elasticity
    1. 1.1 Introduction
    2. 1.2 Stress Tensor
    3. 1.3 Stress at a Point
    4. 1.4 Plane Stress Condition
    5. 1.5 Strain Tensor
    6. 1.6 Plane Strain Condition
    7. 1.7 Deformations
    8. 1.8 Generalized Hooke's Law
    9. 1.9 Elastic Constants K and G
    10. 1.10 Equilibrium Equations
    11. 1.11 Second Degree Polynomial
    12. 1.12 A Beam Subjected to Pure Bending
    13. Multiple Choice Questions
    14. Exercise
  8. Chapter 2. Mechanical Behaviour of Materials
    1. 2.1 Introduction
    2. 2.2 Crystalline Materials
    3. 2.3 Crystal Structures of Various Elements
    4. 2.4 Atomic Bonding
    5. 2.5 Single Crystal
    6. 2.6 Polycrystalline Materials
    7. 2.7 Imperfections in Solids
    8. 2.8 Dislocations
    9. 2.9 Surface Imperfections
    10. 2.10 Volume Imperfections
    11. 2.11 Slip Systems
    12. 2.12 Mechanical Properties
    13. 2.13 Hardness
    14. 2.14 Failure Analysis
    15. 2.15 Fracture Toughness
    16. 2.16 Fatigue
    17. 2.17 Creep
    18. 2.18 Stress Relaxation
    19. Multiple Choice Questions
    20. Practice Problems
  9. Chapter 3. Fixed Beams
    1. 3.1 Introduction
    2. 3.2 Fixed Beam-bending Moment Diagram
    3. 3.3 Fixed Beam-support Moments
    4. 3.4 Fixed Beam with a Concentrated Load at Centre
    5. 3.5 Fixed Beam with Uniformly Distributed Load Throughout Its Length
    6. 3.6 Fixed Beam with an Eccentric Load
    7. 3.7 Effect of Sinking of a Support in a Fixed Beam
    8. 3.8 Effect of Rotation of a Support in a Fixed Beam
    9. Multiple Choice Questions
    10. Practice Problems
  10. Chapter 4. Continuous Beams
    1. 4.1 Introduction
    2. 4.2 Clapeyron's Theorem of Three Moments
    3. 4.3 Theorem of Three Moments—Any Type of Loading
    4. 4.4 Supports not at Same Level
    5. 4.5 Continuous Beam with Fixed End
    6. Multiple Choice Questions
    7. Exercise
  11. Chapter 5. Torsion of Non-circular Shafts
    1. 5.1 Introduction
    2. 5.2 Rectangular Section
    3. 5.3 Torsion of Elliptical Section Shaft
    4. 5.4 Torsion of a Shaft with Equilateral Triangular Section
    5. 5.5 Membrane Analogy
    6. 5.6 Torsion of Thin Walled Sections
    7. 5.7 Torsion of Thin Rectangular Sections
    8. 5.8 Torsion of Thin Walled Multi-cell Sections
    9. Multiple Choice Questions
    10. Practice Problems
  12. Chapter 6. Statically Indeterminate Structures
    1. 6.1 Introduction
    2. 6.2 Analysis of Redundant Frames with Strain Compatibility Condition
    3. 6.3 Degree of Redundancy
    4. 6.4 Analysis of Statically Indeterminate Trusses
    5. Practice Problems
  13. Chapter 7. Rotational Stresses
    1. 7.1 Introduction
    2. 7.2 Rotating Ring
    3. 7.3 Stresses in a Thin Rotating Disc
    4. 7.4 Disc of Uniform Strength
    5. 7.5 Stresses in Rotating Long Cylinders
    6. 7.6 Temperature Stresses in a Thin Disc
    7. Multiple Choice Questions
    8. Practice Problems
  14. Chapter 8. Strain Gauges
    1. 8.1 Introduction
    2. 8.2 Electrical Resistance Strain Gauge
    3. 8.3 Gauge Sensitivities and Gauge Factor
    4. 8.4 Temperature Compensation
    5. 8.5 Parameters Influencing the Behaviour of Strain Gauge
    6. 8.6 Rosette Analyses
    7. 8.7 Electrical Circuits
    8. 8.8 Semiconductor Strain Gauges
    9. 8.9 Stress Gauge
    10. Multiple Choice Questions
    11. Practice Problems
  15. Chapter 9. Photoelasticity
    1. 9.1 Introduction
    2. 9.2 Stress Optic Law
    3. 9.3 Properties of Light
    4. 9.4 Plane Polariscope
    5. 9.5 Properties of Isoclinic Fringes
    6. 9.6 Circular Polariscope
    7. 9.7 Compensation Techniques
    8. 9.8 Fringe Sharpening by Partial Mirrors
    9. 9.9 Fringe Multiplication by Partial Mirrors
    10. 9.10 Separation Techniques
    11. 9.11 Stresses in Prototype
    12. 9.12 Three Dimensional Photoelasticity
    13. 9.13 Characteristics of a Good Photoelastic Material
    14. Multiple Choice Questions
    15. Practice Problems
  16. Chapter 10. Brittle Coating Technique
    1. 10.1 Introduction
    2. 10.2 Coating Stresses
    3. 10.3 Failure Theories
    4. 10.4 Crack Patterns in Brittle Coating
    5. 10.5 Refrigeration Technique
    6. 10.6 Load Relaxation Technique
    7. 10.7 Crack Detection
    8. 10.8 Types of Brittle Coating
    9. 10.9 Equipment for Brittle Coating Method
    10. 10.10 Preparation of Specimen
    11. 10.11 Testing Procedure
    12. 10.12 Calibration of Brittle Coating
    13. Multiple Choice Questions
    14. Practice Problems
  17. Chapter 11. Moire Fringes Technique
    1. 11.1 Introduction
    2. 11.2 Strain Analysis Through Moire Fringes
    3. 11.3 Geometrical Approach
    4. 11.4 Displacement Approach
    5. Multiple Choice Questions
    6. Practice Problems
  18. Chapter 12. Aircraft Structures
    1. 12.1 Introduction
    2. 12.2 Structural Components of Aircraft
    3. 12.3 Shear Centre
    4. 12.4 Shear Flow in Thin Webs
    5. 12.5 Shear Lag
    6. 12.6 Shear Load on Wing Ribs
    7. 12.7 Loads on Bulk Heads
    8. 12.8 Spanwise Taper Effect on Shear Flow in Webs
    9. 12.9 Shear Flow in Tapered Webs
    10. 12.10 Cutouts in Semimonococque Structures
    11. Multiple Choice Questions
    12. Exercise
  19. Chapter 13. Experiments in Material Testing and Experimental Stress Analysis
    1. 13.1 Introduction
    2. 13.2 To Plot a Graph Between Actual Stress and Actual Strain for a Sample Under Tension Using UTM
    3. 13.3 Buckling Test on Columns Using UTM
    4. 13.4 Determination of Shear Centre of a Channel Section
    5. 13.5 Creep Test
    6. 13.6 Fatigue Test
    7. 13.7 Determination of Young's Modulus and Poisson's Ratio
    8. 13.8 Determination of Shear Modulus
    9. 13.9 Calibration of a Proving Ring
    10. 13.10 Calibration of a Photoelastic Model for Stress Fringe Value
  20. Copyright