Mechanical Metallurgy |
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Page 80
... criterion predicts that the yield stress in torsion will be less than in uniaxial tension according to k = % = 0.5770 % ( 3-14 ) √3 - To summarize , note that the von Mises ' yield criterion implies that yielding is not dependent on ...
... criterion predicts that the yield stress in torsion will be less than in uniaxial tension according to k = % = 0.5770 % ( 3-14 ) √3 - To summarize , note that the von Mises ' yield criterion implies that yielding is not dependent on ...
Page 82
... criterion assumes that yielding occurs when the maximum shear stress reaches the value of the shear stress in the ... criterion is given by 02 For a state of pure shear , σ1 = -σ3 = k , σ2 = 0 , the maximum - shear - stress criterion ...
... criterion assumes that yielding occurs when the maximum shear stress reaches the value of the shear stress in the ... criterion is given by 02 For a state of pure shear , σ1 = -σ3 = k , σ2 = 0 , the maximum - shear - stress criterion ...
Page 286
... criterion and the von Mises ' , or distortion - energy , criterion have already been con- sidered previously in the discussion of yielding criteria . The maximum - normal- stress criterion proposes that fracture is controlled only by ...
... criterion and the von Mises ' , or distortion - energy , criterion have already been con- sidered previously in the discussion of yielding criteria . The maximum - normal- stress criterion proposes that fracture is controlled only by ...
Contents
Elements of the Theory of Plasticity | 3 |
Dislocation Theory | 150 |
Strengthening Mechanisms | 190 |
Copyright | |
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alloys angle annealed atoms axis behavior billet brittle fracture Burgers vector cold-worked components compression constant crack criterion cycles decrease determined diameter direction dislocation line ductile edge dislocation elastic elongation energy equations extrusion factor failure fatigue limit fibers flow curve flow stress force forging friction given grain boundaries hot-working hydrostatic increases lattice length load machining martensite material matrix maximum measured mechanical Metals Park modulus normal stress notch occurs orientation particles percent plastic deformation plastic strain polymer pressure produced properties ratio reduction region residual stresses rolling screw dislocation shear strain shear stress sheet shown in Fig shows single crystals slip plane slip systems Society for Metals solid specimen steel strain hardening strain rate stress-strain curve structure surface tensile strength tensile stress tensor theory thermal thickness tool torsion Trans usually velocity workpiece yield strength yield stress York