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Hosford W.F. Mechanical Behavior of Materials

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Hosford W.F. Mechanical Behavior of Materials
Cambridge University Press, 2005. — 425 p.
This text differs from other books on mechanical behavior in several aspects. The treatment of plasticity has greater emphasis on the interrelationship of the flow, effective strain, and effective stress, and their use in conjunction with yield criteria to solve problems. The treatment of defects is new. Schmid's law is generalized for complex stress states. Its use with strains allows for prediction of R values for textures. Another feature is the treatment of lattice rotations and how they lead to deformation textures. Most texts treat only strain relaxation and neglect stress relaxation. The chapter on fracture mechanics includes coverage of Gurney's approach. Most texts omit any coverage of residual stresses. Much of the analysis of particulate composites is new. Few texts include anything on metal forming. Throughout the text, there is more emphasis on quantitative problem solving than in most other texts. The notes at the end of the chapters are included to increase reader interest in the subject.
Stress and Strain
Stress
Sign Convention
Transformation of Axes
Principal Stresses
Mohr’s Stress Circles
Strains
Small Strains
Transformation of Axes
Mohr’s Strain Circles
Force and Moment Balances
Boundary Conditions
Note
Problems
Elasticity
Isotropic Elasticity
Variation of Young’s Modulus
Isotropic Thermal Expansion
Anisotropic Elasticity
Orientation Dependence of Elastic Response
Orientation Dependence in Cubic Crystals
Orientation Dependence in Noncubic Crystals
Orientation Dependence in Materials Other Than Single Crystals
Anisotropic Thermal Expansion
Notes
Problems
Tensile Testing
Tensile Specimens
Stress–Strain Curves
Ductility
True Stress and Strain
The Bridgman Correction
Temperature Rise
Sheet Anisotropy
Measurement of Force and Strain
Axial Alignment
Special Problems
Notes
Problems
Other Tests of Plastic Behavior
Compression Test
Plane-Strain Compression
Plane-Strain Tension
Biaxial Tension (Hydraulic Bulge Test)
Torsion Test
Bend Tests
Hardness Tests
Mutual Indentation Hardness
Note
Problems
Strain-Hardening of Metals
Mathematical Approximations
Power-Law Approximation
Necking
Work per Volume
Localization of Strain at Defects
Notes
Problems
Plasticity Theory
Yield Criteria
Tresca Maximum Shear Stress Criterion
Von Mises Criterion
Flow Rules
Principle of Normality
Effective Stress and Effective Strain
Other Isotropic Yield Criteria
Anisotropic Plasticity
Effect of Strain-Hardening on the Yield Locus
Notes
Problems
Strain-Rate and Temperature Dependence of Flow Stress
Strain-Rate Dependence of Flow Stress
Superplasticity
Combined Strain and Strain-Rate Effects
Strain-Rate Sensitivity of bcc Metals
Temperature Dependence
Combined Temperature and Strain-Rate Effects
Hot Working
Notes
Problems
Slip
Slip Systems
Schmid’s Law
Strains Produced by Slip
Strain-Hardening of fcc Single Crystals
Tensile Deformation of fcc Crystals
Slip in bcc Crystals
Slip in hcp Crystals
Lattice Rotation in Tension
Lattice Rotation in Compression
Texture Formation in Polycrystals
Approximate Calculation of R-Values
Notes
Problems
Dislocation Geometry and Energy
Theoretical Strength of Crystals
The Nature of Dislocations
Burgers Vectors
Energy of a Screw Dislocation
Reactions between Parallel Dislocations and Frank’s Rule
Stress Fields around Dislocations
Forces on Dislocations
Partial Dislocations in fcc Crystals
Stacking Faults
Notes
Problems
Dislocation Mechanics
Frank–Read Sources
Dislocation Pile-Ups
Cross-Slip
Dislocation Intersections
Climb
Notes
Problems
Mechanical Twinning and Martensitic Shear
Formal Notation
Twinning Shear
Twinning in fcc Metals
Twinning in bcc Metals
Twinning in hcp Metals
Shapes of Twins
Mechanism of Twinning
Martensite Transformation
Shape Memory and Superelasticity
Notes
Problems
Hardening Mechanisms in Metals
Deformation of Polycrystals
Texture Strengthening
Crystal Structure
Grain Size
Strain-Hardening
Solid-Solution Strengthening
Dispersion Strengthening
Yield Points and Strain-Aging
Dynamic Strain-Aging
Combined Effects
Notes
Problems
Ductility and Fracture
Ductile Fracture
Brittle Fracture
Impact Energy
Notes
Problems
Fracture Mechanics
Theoretical Fracture Strength
Stress Concentration
Griffith Theory
Orowan Theory
Fracture Modes
Irwin’s Fracture Analysis
Plastic Zone Size
Thin Sheets
Temperature and Loading Rate
Metallurgical Variables
Fracture Mechanics in Design
Compact Tensile Specimens
Strain-Energy Release
The J-integral
Notes
Problems
Appendix
Size and Shape of the Plastic Zone at a Crack Tip
Viscoelasticity
Rheological Models
Series Combination of a Spring and Dashpot
Parallel Combination of a Spring and Dashpot
Combined Parallel–Series Model
More Complex Models
Damping
Natural Decay
Elastic Modulus – Relaxed Versus Unrelaxed
Thermoelastic Effect
Snoek Effect in bcc Metals
Other Damping Mechanisms
Notes
Problems
Creep and Stress Rupture
Creep Mechanisms
Temperature Dependence of Creep
Deformation Mechanism Maps
Cavitation
Rupture Versus Creep
Extrapolation Schemes
Alloys for High-Temperature Use
Notes
Problems
Fatigue
Surface Observations
Nomenclature
S–N Curves
Effect of Mean Stress
The Palmgren–Miner Rule
Stress Concentration
Surfaces
Design Estimates
Metallurgical Variables
Strains to Failure
Crack Propagation
Cyclic Stress–Strain Behavior
Temperature and Cycling Rate Effects
Fatigue of Polymers
Fatigue Testing
Design Considerations
Notes
Problems
Residual Stresses
Small-Scale Stresses
Bauschinger Effect
Nonuniform Cooling
Nonuniform Material
Stresses from Welding
Stresses from Mechanical Working
Consequences of Residual Stresses
Measurement of Residual Stresses
Relief of Residual Stresses
Notes
Problems
Ceramics and Glasses
Elastic Properties
Slip Systems
Hardness
Weibull Analysis
Testing
Porosity
High-Temperature Behavior
Fracture Toughness
Toughening of Ceramics
Fatigue
Silicate Glasses
Strength of Glasses
Thermally Induced Stresses
Delayed Fracture
Glassy Metals
Notes
Problems
Polymers
Elastic Behavior
Rubber Elasticity
Damping
Yielding
Effect of Strain Rate
Effect of Pressure
Crazing
Yielding of Fibers in Compression
Fracture
Deformation Mechanism Maps
Shape-Memory Effect
Notes
Problems
Composites
Fiber-Reinforced Composites
Elastic Properties of Fiber-Reinforced Composites
Strength of Fiber-Reinforced Composites
Volume Fraction of Fibers
Orientation Dependence of Strength
Fiber Length
Failures with Discontinuous Fibers
Failure under Compression
Typical Properties
Particulate Composites
Brick-Wall Model
Lamellar Composites
Notes
Problems
Mechanical Working
Bulk-Forming Energy Balance
Deformation Zone Geometry
Friction in Bulk Forming
Formability
Deep Drawing
Stamping
Notes
Problems
Appendix
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