Mechanical MetallurgyI Mechanical Fundamentals 1 Introduction 2 Stress and Strain Relationships for Elastic Behavior 3 Elements of the Theory of Plasticity II Metallurgical Fundamentals 4 Plastic Deformation of Single Crystals 5 Dislocation Theory 6 Strengthening Mechanisms 7 Fracture III Applications to Materials Testing 8 The Tension Test 9 The Hardness Test 10 The Torsion Test 11 Fracture Mechanics 12 Fatigue of Metals 13 Creep and Stress Rupture 14 Brittle Fracture and Impact Testing IV Plastic Forming of Metals 15 Fundamentals of Metalworking 16 Forging 17 Rolling of Metals 18 Extrusion 19 Drawing of Rods, Wires and Tubes 20 Sheet-Metal Forming 21 Maching of Metals Appendixes |
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Page 80
... Maximum - Shear - Stress or Tresca Criterion This yield criterion assumes that yielding occurs when the maximum shear stress reaches the value of the shear stress in the uniaxial - tension test . From Eq . ( 2-21 ) , the maximum shear ...
... Maximum - Shear - Stress or Tresca Criterion This yield criterion assumes that yielding occurs when the maximum shear stress reaches the value of the shear stress in the uniaxial - tension test . From Eq . ( 2-21 ) , the maximum shear ...
Page 343
... maximum shear stress . Generally the plane of the fracture is normal to the longitudinal axis ( see Fig . 10-5a ) . A brittle material fails in torsion along a plane perpendicular to the direction of the maximum tensile stress . Since ...
... maximum shear stress . Generally the plane of the fracture is normal to the longitudinal axis ( see Fig . 10-5a ) . A brittle material fails in torsion along a plane perpendicular to the direction of the maximum tensile stress . Since ...
Page 383
... maximum stress and adjusting the minimum stress in each case so that it is a constant fraction of the maximum stress . The case of completely reversed stress is given at R = −1.0 . Note that as R becomes more positive , which is ...
... maximum stress and adjusting the minimum stress in each case so that it is a constant fraction of the maximum stress . The case of completely reversed stress is given at R = −1.0 . Note that as R becomes more positive , which is ...
Contents
Introduction | 3 |
Stress and Strain Relationships for Elastic Behavior | 18 |
Metallurgical Fundamentals | 101 |
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alloy aluminum angle annealed ASTM atoms axis behavior billet brittle fracture Burgers vector cold-worked components compression constant crack creep cycles decrease determined diameter direction dislocation line ductile edge dislocation elastic elongation embrittlement energy engineering equation extrusion factor failure fatigue limit fibers Figure flow curve flow stress force forging friction given grain boundaries hot-working hydrostatic increase indentation lattice length load machining martensite material matrix maximum measured mechanical metallurgical Metals Park modulus necking notch occurs particles percent plane-strain plastic deformation plastic strain pressure produce properties ratio recrystallization reduction region residual stresses rolling screw dislocation shear stress sheet shown in Fig slip plane slip systems Society for Metals specimen steel strain hardening strain rate stress-strain curve structure surface temperature tensile strength tensile stress tension test tensor thickness tool torsion Trans usually velocity workpiece yield strength yield stress