Fig.7-14 Measurement of crack length on in-pile crack growth test and fracture surface of specimen

Fig.7-14 Measurement of crack length on in-pile crack growth test and fracture surface of specimen

Changes of crack length on in-pile test could be measured by direct current potential drop (DCPD) method using pre-irradiated compact tension (CT) specimen. (Fatigue pre crack was introduced by cyclic loading before in-pile test. R is the ratio and t H is a holding period. )

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