Abstract
The purpose of this study is to obtain the fundamental feature of perforated plate under the load-controlled low-cycle fatigue and creep-fatigue condition. The hysteresis-loop and the crack propagation were measured during the test to examine the relation between crack propagation and the history of strain. And the Stress Redistribution Locus (SRL) method is applied for estimation of stress concentration in order to predict fatigue and creep-fatigue life for the specimens. It was found that the strain varies with increasing number of cycle. In the latter of cycle the strain increased sharply. It was shown that the life evaluation can be more accurate using the strain obtained by applying SRL method. Additionally, it was shown that the life evaluation using crack initiation cycle is more accurate than that using failure cycle.
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