Search Results for fatigue crack growth

Fig. 58 Influence of texture on fatigue crack growth in Ti-6Al-4V. Fatigue crack growth rates are higher when basal planes are loaded in tension. The elastic modulus in tension for the basal texture (B) is 109 GPa (15.8 × 10 6 psi); for the transverse texture (T), 126 GPa (18.3 × 10 6 psi More

Fig. 9.16 Fatigue crack growth testing and data analysis. (a) Crack length measurement, (b) calculation of crack growth rate, and (c) analysis of da/dN versus stress intensity range. More

Fig. 5.40 Fatigue crack growth behavior of 7075-T6 aluminum under remote and crack-line loading conditions. Source: Ref 5.41 More

Fig. 7.25 Fatigue crack growth per fatigue cycle ( da / dN ) versus stress intensity variation ( Δ K ) per cycle. The C and n are constants that can be obtained from the intercept and slope, respectively, of the linear log da / dN versus log Δ K plot. This equation for fatigue crack More

Fig. 14 A typical fatigue-crack growth-rate curve consists of three regions: a slow-growing region (threshold), a linear region (the middle section of the curve), and a terminal region toward the end of the curve where Δ K approaches K c . The Paris power-law equation, da/dN = C (Δ K More

Fig. 14.7 Fatigue crack growth in a high-strength steel part More

Fig. 21 Fatigue crack growth rate results for two A588 grade A HSLA steels showing comparison of LS and SL testing orientations. CON, conventional; CaT, calcium treatment. Improved isotropy of the calcium-treated steel is noted. More

Fig. 22 Range of fatigue crack growth notes at Δ k = 55 MPa m (50 ksi in ) in six testing orientations for conventional (CON) and calcium-treated (CaT) quality plates of A516-70, A533B-1, and A514F. Improved isotropy of quality levels is demonstrated for calcium-treated More

Fig. 8.26 Fatigue crack growth rate ( R = 0.1) versus stress-intensity factor at room temperature for A356.0-T6 aluminum alloy castings produced by various processes More

Fig. 8.27 Fatigue crack growth rate ( R = 0.5) versus stress-intensity factor at room temperature for A356.0-T6 aluminum alloy castings produced by various processes More

Fig. 6.40. Effect of hold time on fatigue-crack-growth-rate properties of 2¼Cr-1Mo cast steel ( Ref 91 ). More

Fig. 8.22. Fatigue-crack-growth-rate data for ESR 12Cr-Mo-V rotor steel at 20, 550, and 600 °C compared with standard X21CrMoV121 alloy at 20 °C ( Ref 67 ). More

Fig. 9.55. Fatigue-crack-growth rates as a function of cyclic stress-intensity range for IN 738 LC and IN 939 at 850 °C (1560 °F) in different environments ( Ref 9 and 84 ). More

Fig. 4.42. Schematic fatigue-crack-growth curve (based on Ref 163 ; cited in Ref 14 ). More

Fig. 4.44. Cyclic fatigue-crack-growth rates plotted against cyclic J ( Ref 13 ). More

Fig. 4.45. Variation of fatigue-crack-growth rate with plastic strain ( Ref 11 ). More

Fig. 4.46. Effect of temperature on fatigue-crack-growth behavior of 2¼Cr-1Mo steel ( Ref 4 ). More

Fig. 4.47. Fatigue-crack-growth rates of long cracks for various high-temperature alloys in air at (left) room temperature and (right) 850 °C (1560 °F) ( Ref 186 ). More

Fig. 4.48. Fatigue-crack-growth rates for Inconel X-750 as a function of stress-intensity-factor range at a cycling frequency of 0.17 Hz ( Ref 185 ). More

Fig. 4.49. Variation of fatigue-crack-growth rates as a function of temperature at ΔK = 30 MPa m (27 ksi in . ). More