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 41
... shear stress necessary to move the atoms on the slip plane varies periodically from zero at P , Q , and R to a maximum value at b / 4 and 3b / 4 . Therefore , the shear stress may be expressed in the following form ( from an analysis ...
... shear stress necessary to move the atoms on the slip plane varies periodically from zero at P , Q , and R to a maximum value at b / 4 and 3b / 4 . Therefore , the shear stress may be expressed in the following form ( from an analysis ...
Page 91
... stress sensitivity values . Note the magnitude of the yield drop increasing with decreasing m . If there are many ... shear stress - shear strain curve is seen to contain several distinct regions : an initial region of elastic response ...
... stress sensitivity values . Note the magnitude of the yield drop increasing with decreasing m . If there are many ... shear stress - shear strain curve is seen to contain several distinct regions : an initial region of elastic response ...
Page 158
... 7 Boundary transport 10-8 10-2 10 10-8 10-10 / Sec Bulk transport 1 .2 .3 10-3 4 .5 .6 .7 .8 .9 1.0 Homologous temperature ( T / Tm ) ( b ) Shear stress ( MPa ) Shear stress ( MPa ) Normalized shear stress -200 0 200 400 Temperature ( ° ...
... 7 Boundary transport 10-8 10-2 10 10-8 10-10 / Sec Bulk transport 1 .2 .3 10-3 4 .5 .6 .7 .8 .9 1.0 Homologous temperature ( T / Tm ) ( b ) Shear stress ( MPa ) Shear stress ( MPa ) Normalized shear stress -200 0 200 400 Temperature ( ° ...
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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