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