Fig. 9.38 Relation of crack initiation to crack propagation and failure. Source: Ref 9.38 More

Fig. 5.9 XSP of crack tip showing successive stages of crack propagation in a thermally embrittled stainless steel. Source: Ref 14 , 15 More

Fig. 1.2 Schematic diagram of typical crack propagation rate as a function of crack-tip stress-intensity behavior illustrating the regions of stage 1, 2, and 3 crack propagation as well as identifying the plateau velocity and the threshold stress intensity More

Fig. 2 Schematic of typical crack propagation rate as a function of crack tip stress-intensity behavior illustrating the regions of stages 1, 2, and 3 crack propagation, as well as identifying the plateau velocity and the threshold stress intensity More

Fig. 11.11 Micrograph of crack propagation through a dispersed-phase, rubber-toughened thermoset-matrix composite after impact. Transmitted-light phase contrast, 40× objective More

Fig. 11 Intergranular fracture in case unstable crack propagation zone in gas-carburized and direct-cooled SAE 4320 steel More

Fig. 32 Macroscale brittle crack propagation due to combined mode I and mode II loading. As cracks grow from the preexisting cracklike imperfection, crack curvature develops because of growth on a plane of maximum normal stress. Source: Ref 13 More

Fig. 30 Fatigue crack propagation. Source: Ref 17 More

Fig. 41 Crack propagation curve for fatigue loading. Source: Ref 1 More

Fig. 10.10 Disk pilot rib crack propagation due to shutdown More

Fig. 9.31 Crack propagation for notched circular specimens. (a) 7075-T6 aluminum alloy. (b) Annealed 4340 steel. Source: Ref 9.38 More

Fig. 10.21 Crack propagation along slip lines in aluminum. Source: Ref 10.21 More

Fig. 8.8 Wedge-crack propagation test results. Source: Ref 1 More

Fig. 2.45 Radial marks typical of crack propagation that is fastest at the surface (if propagation is uninfluenced by part or specimen configuration) More

Fig. 2.46 Chevron patterns typical when crack propagation is fastest below the surface. It is also observed in fracture of parts having a thickness much smaller than the length or width (see middle illustration in Fig. 2.47 ). More

Fig. 17 Crack propagation rates in stress-corrosion tests using precracked specimens of high-strength 2 xxx series aluminum alloys, 25 mm thick, double antilever beam, T-L (S-L) orientation of plate, wet twice a day with an aqueous solution of 3.5% NaCl, 23 °C. Source: Ref 13 More

Fig. 20 Crack propagation rates in stress corrosion tests using 7 xxx series aluminum alloys, 25 mm thick, double cantilever beam (DCB), short-transverse orientation of die transverse orientation of die forgings and plate, alternate immersion tests, 23 °C. Source: Ref 13 More

Fig. 5.56 Effect of applied stress on fatigue crack propagation More

Fig. 5.61 Schematic stress profiles for fatigue crack propagation testing showing the effects of overload/underload with hold time. Source: Ref 5.72 More

Fig. 5.68 Influence of testing temperature on fatigue crack propagation exponent for iron-base alloys. Source: Ref 5.83 More