## MECHANICAL METALLURGY |

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Page 22

These planes are called the principal planes, and the stresses normal to these

planes are the

two

These planes are called the principal planes, and the stresses normal to these

planes are the

**principal stresses**. For two-dimensional plane stress there will betwo

**principal stresses**<TI and a•> which occur at angles that are 90° apart (Fig.Page 24

Note that it acts on a plane for which 6 = ir/4 (26 = ir/2 on Mohr's circle); i.e., the

plane on which rm^ acts bisects the angle between the

circle can also be used to determine the stresses acting on any oblique plane

mm ...

Note that it acts on a plane for which 6 = ir/4 (26 = ir/2 on Mohr's circle); i.e., the

plane on which rm^ acts bisects the angle between the

**principal stresses**. Mohr'scircle can also be used to determine the stresses acting on any oblique plane

mm ...

Page 408

Methods have been developed of measuring with considerable precision

residual stresses in heat- treated steel by ... 15-8). The normal stress given by the

coordinates ^ and 0 can be expressed in terms of the three

their ...

Methods have been developed of measuring with considerable precision

residual stresses in heat- treated steel by ... 15-8). The normal stress given by the

coordinates ^ and 0 can be expressed in terms of the three

**principal stresses**andtheir ...

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### Contents

Stress and Strain Relationships for Elastic Behavior | 17 |

Elements of the Theory of Plasticity | 54 |

Plastic Deformation of Single Crystals | 81 |

Copyright | |

19 other sections not shown

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### Common terms and phrases

alloys aluminum angle annealing ASTM axis behavior bending billet brittle fracture Burgers vector cent compressive constant crack creep rate decrease determined diameter direction dislocation line distribution drawing ductile edge dislocation effect elastic elongation equation extrusion factor failure fatigue limit flow curve flow stress force forging forming friction given grain boundaries hardness high-temperature increase indentation lattice length load longitudinal mandrel martensite material maximum measured mechanical metallurgical Metals Park method modulus notch obtained occurs orientation particles plastic deformation pressure principal stresses Proc produced properties punch quenched radius ratio recrystallization region relationship residual stresses rolling screw dislocations shear stress sheet shown in Fig shows single crystals slip plane Society for Metals specimen steel strain energy strain hardening strain rate stress-strain curve structure surface temper tensile strength tensile stress theory thickness tion torsion Trans transition temperature tube usually yield point yield strength yield stress