## Mechanical Behavior of Materials |

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Page 23

x (<x, + a2) + ^(o, - a2) cos 28 (1.21) SECTION Permanent Deformation 1.3 The

Mohr's circle representation of biaxial tension (i.e., Eqs. (1.20) and (1.21)) is

tensile ...

x (<x, + a2) + ^(o, - a2) cos 28 (1.21) SECTION Permanent Deformation 1.3 The

Mohr's circle representation of biaxial tension (i.e., Eqs. (1.20) and (1.21)) is

**shown in Fig**. 1 . 1 3b. Here the principal stresses, a, and a2, are laid out on thetensile ...

Page 127

Hence, AP and P'B can move independently of each other and, as

3.38, continued slip does not necessitate nonconservative processes; that is,

dislocation motion of segments AP and P'B continues even while the jog

connecting ...

Hence, AP and P'B can move independently of each other and, as

**shown in Fig**.3.38, continued slip does not necessitate nonconservative processes; that is,

dislocation motion of segments AP and P'B continues even while the jog

connecting ...

Page 576

Sample rotation results in a stress-time variation on the sample surface like that

Ao72 = a^x- (b) A cyclical tension test for investigating fatigue behavior for R + - 1

.

Sample rotation results in a stress-time variation on the sample surface like that

**shown in Fig**. 12.66; i.e., alternating compression/tension with R = — 1, aa =Ao72 = a^x- (b) A cyclical tension test for investigating fatigue behavior for R + - 1

.

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### Contents

Overview of Mechanical Behavior l | 1 |

A The Tension Test B StrainRate Sensitivity C Yielding Under | 28 |

A Fracture Toughness B Tensile Fracture C Creep Fracture | 37 |

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### Common terms and phrases

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 cubic curve cyclical decreases depends 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 greater hardening high-temperature illustrated in Fig increases initial length linear elastic loading low temperatures martensite material's matrix maximum microscopic 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 plane slip systems solids solute atom steel strain rate strengthening stress levels stress-strain structure superplastic surface takes place tensile axis tensile strength tensile stress tion toughening transition viscoelastic void growth volume fraction work-hardening yield strength