Mechanical Behavior of Materials |
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Page 585
... Crack growth rate increases as crack length increases . This rate is mea- sured by the instantaneous slope of the curves . These schematics are constructed for a fixed stress ampli- tude , but the stress ratio R ( = σmin / max ) differs ...
... Crack growth rate increases as crack length increases . This rate is mea- sured by the instantaneous slope of the curves . These schematics are constructed for a fixed stress ampli- tude , but the stress ratio R ( = σmin / max ) differs ...
Page 650
... crack - growth rate expression of Eq . ( 13.1 ) , especially in those cases where anodic dissolution controls crack extension . However , we must also realize it is difficult to a priori predict crack - tip dissolution rates on the ...
... crack - growth rate expression of Eq . ( 13.1 ) , especially in those cases where anodic dissolution controls crack extension . However , we must also realize it is difficult to a priori predict crack - tip dissolution rates on the ...
Page 673
... crack - growth rate . During this stage , crack growth is con- trolled by the usual kinetic considerations . Unstable , final crack growth occurs at a K value that is nearly independent of the humidity level . Modeling of the crack- growth ...
... crack - growth rate . During this stage , crack growth is con- trolled by the usual kinetic considerations . Unstable , final crack growth occurs at a K value that is nearly independent of the humidity level . Modeling of the crack- growth ...
Contents
Overview of Mechanical Behavior | 1 |
Toughening Mechanisms and the Physics of Fracture | 10 |
Elastic Behavior | 44 |
Copyright | |
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alloys applied stress behavior bonding brittle Burgers vector ceramics Chap CHAPTER Coble creep composite compression crack growth crack propagation crack tip craze creep fracture creep rate Crystalline Materials cubic curve cyclical decreases 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 temperatures martensite material's matrix microscopic MN/m² 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 TCRSS tensile axis tensile strength tensile stress tion toughening transition viscoelastic volume fraction work-hardening yield strength