Mechanical Behavior of Materials |
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Page 16
... flow stress of a material , although the degree to which it does so is a strong function of the temperature and is ... flow of noncrystalline solids ( Chap . 8 ) . For the present we simply note that the strain - rate sensitivity of the ...
... flow stress of a material , although the degree to which it does so is a strong function of the temperature and is ... flow of noncrystalline solids ( Chap . 8 ) . For the present we simply note that the strain - rate sensitivity of the ...
Page 169
... yield and flow at considerably higher stress levels . This is a direct result of constraints that neighboring , and differently oriented , grains within the polycrys- tal place on each other . These constraints necessitate the operation ...
... yield and flow at considerably higher stress levels . This is a direct result of constraints that neighboring , and differently oriented , grains within the polycrys- tal place on each other . These constraints necessitate the operation ...
Page 240
... flow stress and , thus , hard- ness varies with dislocation density in the same manner as flow stress . ) d The stress concentration in front of a crack tip produces a plastic zone there . The ra- dius ( r ) of this zone is ...
... flow stress and , thus , hard- ness varies with dislocation density in the same manner as flow stress . ) d The stress concentration in front of a crack tip produces a plastic zone there . The ra- dius ( r ) of this zone is ...
Contents
Overview of Mechanical Behavior | 1 |
Toughening Mechanisms and the Physics of Fracture | 10 |
A The Tension Test B StrainRate Sensitivity C Yielding Under | 28 |
Copyright | |
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alloys applied stress behavior bonding brittle Burgers vector ceramics Chap CHAPTER Coble creep composite crack growth crack propagation crack tip creep fracture creep rate Crystalline Materials cubic curve cyclical decreases diffusional discussed dislocation density dislocation line dislocation motion displacement ductile ductile fracture edge dislocation embrittlement energy equation example fatigue fiber Figure flow stress Fracture Mechanics fracture toughness glass grain boundaries hardening high-temperature increases initial length linear elastic loading low-temperature martensite material's matrix mechanism map microscopic MN/m² Mode modulus nucleation obstacles particle phase plastic deformation plastic flow plastic strain polycrystalline polycrystals polymers precipitation Prob ratio region result Schematic screw dislocation SECTION shear stress shown in Fig single crystal slip direction slip plane slip systems solids solute atom steel strain rate strengthening stress levels stress-strain structure superplastic surface takes place temperature tensile strength tensile stress tion toughening transition viscoelastic volume fraction yield strength