Fatigue Crack Propagation Behavior on Stress Field with Variation of Principal Stress Direction

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  • 主応力方向が変化する応力場における疲労き裂の進展挙動

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Abstract

In order to verify the fatigue crack propagation behavior on the stress field with variation of principal stress direction, fatigue tests and fatigue crack propagation analyses have been performed. The results indicate that the fatigue crack propagates in the direction which inclines to right-angled directions of the crack from right-angled direction of the principal stress and the fatigue crack propagation behavior could be reproduced.

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