Search Results for stress intensity

Fig. 12 Cyclic stress intensity (Δ K ) as a function of crack size for crack types A, B, and C More

Fig. 16 Stress intensity versus loading condition for hatch cover failure( example 3 ) More

Fig. 21 Stress intensity factors (in tension, k I ) for various crack geometries. (a) Surface crack. (b) Embedded crack. (c) Through-thickness crack. (d) Flaw shape parameter ( Q ). Source: Ref 6 More

Fig. 7 Plot of crack-closure stress intensity versus average asperity height for fatigue crack propagation in IN-718 nickel-base alloy. The data include specimens of two different grain sizes tested at three different Δ K levels. Source: Ref 6 More

Fig. 42 Fatigue crack propagation rate versus stress intensity factor range. Fatigue striations may be present on the fracture surface for loading in the linear portion of the curve (Paris Law region), and permit analytical estimations of life to fracture. Just as fracture toughness varies More

Fig. 12 Cyclic crack growth rate as a function of the change in stress intensity for 6061-T651 aluminum alloy. Source: Ref 1 . More

Fig. 5 Effective stress-intensity factor profile through the pipewall thickness. More

Fig. 15 Calculated Mode I stress intensity factors at the maximum crack depth (a) for a longitudinally oriented semi-elliptical crack of width 2c on the internal surface of a nut where a/c = 0.2 and r/t = 4 or 10 a a/t = 0.2 b a/t = 0.5 More

Fig. 43 Fatigue crack propagation rate ( da / dN ) versus stress-intensity factor range (Δ K ). Fatigue striations may be present on the fracture surface for loading in the linear portion of the curve (Paris law region) and permit analytical estimations of life to fracture. Just as fracture More

Fig. 44 Effect of stress-intensity range (Δ K ) on fatigue fracture mechanisms. (a) Alpha-beta titanium alloy. (b) EN-24 and 300M steels. (c) 17-4PH stainless steel. R , stress ratio. Source: Ref 8 More

Fig. 48 Cyclic cleavage observations in Fe-4Ni (at.%) at 233 K and stress-intensity range (Δ K ) = 17 M P a m (15.5 ksi in ). (a) Jogs formed during cyclic stepping across grain. (b) Large number of cleavage rivers formed to accommodate the twist angle misorientation More

Fig. 16 Cyclic stress intensity (Δ K ) as a function of crack size for crack types A, B, and C. Δ K thermal , cyclic stress intensity due to thermal stresses; Δ K p , cyclic stress intensity due to pressure stresses More

Fig. 16 Stress-intensity factors (in tension, K I ) for various crack geometries. (a) Surface crack. (b) Embedded crack. (c) Through-thickness crack. (d) Flaw shape parameter ( Q ) More

Fig. 12 An S-shaped fatigue crack propagation. K , stress-intensity factor; K c , fracture toughness curve indicating its three characteristic regions More

Fig. 2 Plots of crack-velocity versus stress-intensity factor for an aluminium alloy (7075-T651) [ 12 ], a titanium alloy (Ti 8%Al 1%Mo 1%V) [ 13 ] and a high-strength steel (D6aC) [ 14 ], tested in liquid mercury at 20 °C More

Fig. 8 Effect of flaw depth on cyclic stress intensity More

Fig. 12 Deterministic results for the time-dependent stress-intensity factor from all three frameworks More

Fig. 21 Stress-intensity factors (in tension, K I ) for various crack geometries. (a) Surface crack. (b) Embedded crack. (c) Through-thickness crack. (d) Flaw shape parameter ( Q ). Source: Ref 6 More

Fig. 2 Plot of rate crack growth versus cyclic stress intensity amplitude. More

Fig. 9 Dimensionless stress intensity factors, F 1 , at point A (see Fig. 8 ) for semi-elliptical cracks in tension-loaded round bars. After Murakami 11 More