Mechanical Behavior of Materials |
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Page 411
Thomas H. Courtney. FIGURE 9.17 A simplified schematic illustrating the transition from Mode I to Mode II fracture as affected by grain size and temperature . The fracture propagation stress ( σF ) is plotted as a function of preexisting ...
Thomas H. Courtney. FIGURE 9.17 A simplified schematic illustrating the transition from Mode I to Mode II fracture as affected by grain size and temperature . The fracture propagation stress ( σF ) is plotted as a function of preexisting ...
Page 412
... Mode I fracture . On the other hand , the plasticity , while macroscopically homogeneous , is microscopically ... II fracture is Microscopic plasticity → crack nucleation → crack propagation and the observed fracture stress is the ...
... Mode I fracture . On the other hand , the plasticity , while macroscopically homogeneous , is microscopically ... II fracture is Microscopic plasticity → crack nucleation → crack propagation and the observed fracture stress is the ...
Page 417
... Mode II - Mode III transition temperature , for not only does general plastic flow precede fracture then , but is also higher . ( a ) OF ( b ) Oh , Os TENSILE FRACTURE AT LOW TEMPERATURE 417 B Mode II Fracture in BCC Transition Metals.
... Mode II - Mode III transition temperature , for not only does general plastic flow precede fracture then , but is also higher . ( a ) OF ( b ) Oh , Os TENSILE FRACTURE AT LOW TEMPERATURE 417 B Mode II Fracture in BCC Transition Metals.
Contents
Elastic Behavior | 46 |
Plastic Deformation in Single and Polycrystalline | 137 |
Strengthening of Crystalline Materials | 162 |
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alloys applied stress behavior Burgers vector Chap Coble creep composite crack growth crack tip craze creep fracture creep rate crystalline cubic cyclical decreases diffusion diffusional discussed dislocation density dislocation glide dislocation motion displacement ductile ductile fracture edge dislocation effect embrittlement energy fatigue fiber FIGURE flow stress fracture mechanism fracture toughness glass grain boundaries hardening high-temperature illustrated in Fig increases initial interaction length linear elastic low temperatures martensite material material's matrix mechanism map metals microscopic microstructural MN/m² Mode II fracture modulus Nabarro-Herring noncrystalline nucleation obstacles occurs particle phase plastic deformation plastic flow polycrystal polymers ratio recrystallization region result schematically screw dislocation shear stress shown in Fig single crystals slip plane slip systems solid steel strain rate strengthening stress levels stress-strain curve structure superplastic surface takes place TCRSS tensile strength tensile stress transition values viscoelastic viscosity void growth volume fraction yield strength