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

(a) Load and Crack Growth vs. Cycles

(b) LLD vs. Cycles

(c) Load vs. LLD

(d)Load vs. CMOD

Fig. 3. Cyclic tearing test results of pipe 8-QCSP-60-TWC-CSB-LC3.

monotonic fracture testing, for both 8-inch and 12-inch sizes of pipes should be modified for the geometrical difference related to particular cyclic fracture test investigated for calculation of β . The limit moment can be approximately written mathematically for monotonically tested pipe, | =2 2 (2 cos 2 − sin )| (2) where, = Flow stress of the material = Mean radius = Wall thickness. = Depth of part through-wall crack 2 = Through-wall crack size Using above relation of limit moment corresponding to geometries of cyclic tearing test pipe,