Mechanical Behavior of Materials |
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Page 85
... plastic flow is related to the presence , and response to an applied stress , of certain crystallographic defects called dislocations . For example , the presence of dislocations explains the low stresses re- quired to cause flow in ...
... plastic flow is related to the presence , and response to an applied stress , of certain crystallographic defects called dislocations . For example , the presence of dislocations explains the low stresses re- quired to cause flow in ...
Page 140
... flow in crystalline materials is discussed in the context of crystallographic and other considerations ... Plastic Deformation in Single and Polycrystalline Materials Plastic Deformation in Single and Polycrystalline Materials Introduction.
... flow in crystalline materials is discussed in the context of crystallographic and other considerations ... Plastic Deformation in Single and Polycrystalline Materials Plastic Deformation in Single and Polycrystalline Materials Introduction.
Page 406
... are the principal normal ( tensile or compressive ) stresses . High positive values of p promote fracture . On the other hand , negative values of the mean pres- sure , connoting predominantly compressive stresses , favor plastic flow.
... are the principal normal ( tensile or compressive ) stresses . High positive values of p promote fracture . On the other hand , negative values of the mean pres- sure , connoting predominantly compressive stresses , favor plastic flow.
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