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 273
... plastic boundary o Oys = K √2πr ( 8-32 ) ys and the plastic zone size is computed to be K2 / 270,2 . Since the presence of the plastic region makes the material behave as though the crack was slightly longer than actually measured ...
... plastic boundary o Oys = K √2πr ( 8-32 ) ys and the plastic zone size is computed to be K2 / 270,2 . Since the presence of the plastic region makes the material behave as though the crack was slightly longer than actually measured ...
Page 274
... plastic zone radius . the apparent crack length is increased by that amount . In effect , the plastic zone diameter is a little larger than K2 / 270,2 as a result of load redistributions around the zone and is estimated to be twice that ...
... plastic zone radius . the apparent crack length is increased by that amount . In effect , the plastic zone diameter is a little larger than K2 / 270,2 as a result of load redistributions around the zone and is estimated to be twice that ...
Page 277
... plastic zone is relatively small in relation to the overall crack length , the plastic zone correction to the stress intensity factor is usually ignored in practice . This occurs often under fatigue crack propagation conditions , where ...
... plastic zone is relatively small in relation to the overall crack length , the plastic zone correction to the stress intensity factor is usually ignored in practice . This occurs often under fatigue crack propagation conditions , where ...
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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