Deformation and Fracture Mechanics of Engineering MaterialsUpdated to reflect recent developments in our understanding of deformation and fracture processes in structural materials. This completely revised reference includes new sections on isostress analysis, modulus of rupture, creep fracture micromechanicsms, and many more. |
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Page 45
... LATTICE RESISTANCE TO DISLOCATION MOVEMENT THE PEIERLS STRESS From Fig . 2.3 it is clear that the insertion of the extra half plane of atoms has perturbed the lattice and caused atoms to be pushed aside laterally , particularly in the ...
... LATTICE RESISTANCE TO DISLOCATION MOVEMENT THE PEIERLS STRESS From Fig . 2.3 it is clear that the insertion of the extra half plane of atoms has perturbed the lattice and caused atoms to be pushed aside laterally , particularly in the ...
Page 48
... lattice . ( a ) Typical configuration showing kink of length / with angle between kink segment and segment lying along energy trough ; ( b ) sharp kink formed when magnitude of energy fluctuation in lattice is large . In this case ...
... lattice . ( a ) Typical configuration showing kink of length / with angle between kink segment and segment lying along energy trough ; ( b ) sharp kink formed when magnitude of energy fluctuation in lattice is large . In this case ...
Page 49
... lattice . ) In a perfect lattice ( Fig . 2.4c ) , the Burgers circuit beginning at A and progressing an equal and opposite number of lattice vectors in the horizontal and vertical directions will return to its starting position . When ...
... lattice . ) In a perfect lattice ( Fig . 2.4c ) , the Burgers circuit beginning at A and progressing an equal and opposite number of lattice vectors in the horizontal and vertical directions will return to its starting position . When ...
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Common terms and phrases
alloy aluminum alloy American Society applied stress associated ASTM STP atoms behavior brittle Burgers vector Chapter Charpy component crack growth rate crack length crack tip craze crystal crystalline cycles decreasing depends ductility effect elastic embrittlement engineering environment assisted cracking example failure FIGURE flaw fracture mechanics fracture surface fracture toughness given grain boundary hydrogen initial KIEAC lattice load Materials from copyright metallurgical microstructure modulus MPa Vm notch occur orientation parameter plane strain plane stress plastic deformation plastic zone plate polymer properties R. W. Hertzberg region relationship relative Reprinted with permission response result sample screw dislocation Section sensitivity shear stress shown in Fig slip plane slip systems specimen stacking fault energy strain hardening strain rate stress concentration stress intensity factor stress level stress-strain curve striation Table tensile test temperature Testing and Materials texture thickness Trans transition temperature twin values yield strength