PSI - Issue 60

M.K. Sahu et al. / Procedia Structural Integrity 60 (2024) 390–401

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M. K. Sahu et.al./ Structural Integrity Procedia 00 (2019) 000 – 000

Fig. 4. Depiction of failure points of cyclic tearing tests, on room temperature based CTFAD. = ( 1.11 −3) 0.095

(6)

Similarly, for conservative estimate, a lower bound fit curve as per Eq. (7) have been also presented, = ( 1.01 +3) 0.092 (7) This will estimate conservatively the load reduction factor for applied number of loading cycles i.e., the maximum reduction in the monotonic load bearing capacity. If the maximum moment under monotonic conditions is , , then to avoid cyclic tearing for certain number of reversible loading cycles, the maximum permissible moment , can be written in terms of load reduction factor and , as following, , < . , (8)