- RECOMMENDED READING / 13.45. - 13.1.1 Sparse Survey. - 13.1.2 Constant-Stress-Level Testing. - 13.1.3 Probit Method. - 13.1.4 Coaxing. - 13.1.5 Prot Method 1. - 13.1.6 Up-Down Method 1. - (From Ransom [13.5], with permission.). - [13.4] and [13.5].. - (13.5) gives or . - 13.2 SNDIAGRAMFORSINUSOIDAL AND RANDOM LOADING. - Figure 13.2 is a common example. - 13.3 FATIGUE-STRENGTH MODIFICATION FACTORS. - Figures and 13.6 are. - Figure 13.6 represents axial fatigue. - 13.3.1 Marin Surface Factor k a. - Solution: From Table 13.2,. - 13.3.2 Marin Size Factor k b. - Table 13.3 gives useful relations. - 107 d e in inches (13.12) k b. - 107 d e in mm (13.13) For axial loading, k b = 1. - Table 13.4 gives various expressions for k b . - 13.3.3 Marin Loading Factor k c. - fc c = oS£(l,C) (13.14). - 13.3.4 Marin Temperature Factor k d. - K, £0±£fi» (13.16). - TABLE 13.7 Torsional Loading, k c. - TABLE 13.8 Heywood's Parameters, Eq. - (13.16), Stress Concentration. - (13.19). - 13.3.6 Miscellaneous-Effects Modification Factor k e. - 13.3.7 Correlation Method. - b S ut (13.20). - S^=Cb 1 X (13.21). - (13.23) Eq. - (13.8) Eq. - (13.25) Eq. - (13.15). - (13.16). - Table 13.8 Table 13.8 Table 13.8. - (13.13) Table 13.5 Table 13.5 Table 13.5. - (13.30) S ut H B ± 5 kpsi (for gray cast iron). - (13.12),. - (13.9), k b = 0.879(1. - (13.14),. - (13.15),. - (13.17),. - 13.12,. - (13.19), (Kf g. - From Table 13.8, C Kf = 0.15. - 13.4 FLUCTUATINGSTRESS. - 13.13.. - 13.14. - S = S a = /y e _ (13.37). - 13.15.. - (13.16),. - (13.9), k fl From Eq. - (13.12), k b . - (13.13),. - (13.37), o . - (13.38),. - (13.32)]. - (13.42). - (13.43). - 13.5 COMPLICATEDSTRESS-VARIATION PATTERNS. - (13.31). - 13.160. - 13.16&. - 13.16Z?, iden-. - FIGURE 13.16. - (13.42),. - (13.43), a. - (13.44),. - (13.33),. - 13.6 STRENGTHATCRITICALLOCATIONS. - 13.17. - 13.18. - 13.19 (see Chap. - (13.45). - (13.45) can be written as. - Table 13.14 can be constructed. - 13.21. - (13.47). - (13.46). - 13.24,. - T~ b e b + ~T~~Tr (13.51) u H. - 13.8 SURFACEFATIGUE. - (13.56) L \ \bj b]. - K g = ^sin$ (13.61). - 25 (13.65). - [F 23 (Kc + ^)]JS x (13.68) Vw. - 25 (13.69). - 13.10 H. - 13.11 C. - 13.12 R. - 13.13 A. - 13.14 E. - 13.15 C. - 13.16 G Sines and J. - 13.17 H
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