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 386
Richard W. Hertzberg. result , initial crack growth rate readings often are abnormally low , suggesting the existence ... rate 1000 times greater than in the 7178 - T651 alloy and corresponds to a Stage II crack growth rate of greater ...
Richard W. Hertzberg. result , initial crack growth rate readings often are abnormally low , suggesting the existence ... rate 1000 times greater than in the 7178 - T651 alloy and corresponds to a Stage II crack growth rate of greater ...
Page 471
... Crack length Specimen center line Specimen edge Initial stress 48 ± 48 MPa ( 7 ± 7 ksi ) da Average crack propagation rate = 607 μm / cyc dn Edge of center notch 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 Length ( mm ) ( b ) ...
... Crack length Specimen center line Specimen edge Initial stress 48 ± 48 MPa ( 7 ± 7 ksi ) da Average crack propagation rate = 607 μm / cyc dn Edge of center notch 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 Length ( mm ) ( b ) ...
Page 496
... crack to traverse a distance a * at a fixed rate b2 . b1 Application of the overload N- N * b2 FIGURE 13.21 Number of cycles , N Crack growth rate plot illustrating effect of single - peak overload . Note delayed crack growth ...
... crack to traverse a distance a * at a fixed rate b2 . b1 Application of the overload N- N * b2 FIGURE 13.21 Number of cycles , N Crack growth rate plot illustrating effect of single - peak overload . Note delayed crack growth ...
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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