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 425
... cycles s = 1,135 cycles For a 95 % confidence level that 99.9 % of the samples would survive cycling at 215 MPa , the safe life is determined from Eq . 12-4 , where q = 5.203 ( Table 12.1 ) . safe life - x - qs = 16,770-5.203 ( 1,135 ) ...
... cycles s = 1,135 cycles For a 95 % confidence level that 99.9 % of the samples would survive cycling at 215 MPa , the safe life is determined from Eq . 12-4 , where q = 5.203 ( Table 12.1 ) . safe life - x - qs = 16,770-5.203 ( 1,135 ) ...
Page 430
... cycles notched fatigue strength at N cycles From Fig . 12.15 , it is seen that the relative notch sensitivity increases with increasing tensile strength and severity of notch root . As might be expected , the relative notch sensitivity ...
... cycles notched fatigue strength at N cycles From Fig . 12.15 , it is seen that the relative notch sensitivity increases with increasing tensile strength and severity of notch root . As might be expected , the relative notch sensitivity ...
Page 496
... cycles necessary for a 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 ...
... cycles necessary for a 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 ...
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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