Mechanical Behavior of Materials |
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Page 527
... surface energy stress , which acts to shrink voids , must be applied . This retarding stress scales with the surface energy , y , and the void surface - to - volume ratio . Thus , for a spherical void , the retarding force is ...
... surface energy stress , which acts to shrink voids , must be applied . This retarding stress scales with the surface energy , y , and the void surface - to - volume ratio . Thus , for a spherical void , the retarding force is ...
Page 563
... surface - diffusion mass transport rate , and ( 2 ) the oppo- site conditions apply . 11.10 a The transition from grain - boundary- to surface - diffusion - controlled intergranular void growth corresponds to a change in void shape from ...
... surface - diffusion mass transport rate , and ( 2 ) the oppo- site conditions apply . 11.10 a The transition from grain - boundary- to surface - diffusion - controlled intergranular void growth corresponds to a change in void shape from ...
Page 569
... surface morphology has two distinct characteristics . One , noted as clamshell or beach markings , represents that portion of the fracture surface over which crack progression was gradual ( i.e. , slow crack growth ) . This is a ...
... surface morphology has two distinct characteristics . One , noted as clamshell or beach markings , represents that portion of the fracture surface over which crack progression was gradual ( i.e. , slow crack growth ) . This is a ...
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