The Top-on ultrasonic method proposed earlier was applied to the rising load KIscc testing and the validity was confirmed by comparing the determined KIscc values with those measured according to the conventional longtime KIscc testing in the same environments. In addition, the influences of loading rate, fatigue precracking stress intensity level, and fracture morphology of fatigue precracked zone on KIscc were discussed.
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Hirano et al. (1985) studied this question.
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