Mechanical Behavior of Materials

alloys applied stress behavior Burgers vector ceramics Chap Coble creep composite crack growth crack tip craze creep fracture creep rate crystalline cubic cyclical decreases depends 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 greater 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 noncrystalline nucleation obstacles occurs particle phase plastic deformation plastic flow polycrystal polymers ratio recrystallization region result schematically 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 axis tensile strength tensile stress transition values viscoelastic viscosity void growth volume fraction yield strength