G030101 高密度電流場制御により修復した疲労き裂先端の変位分布の評価([G03010]材料力学部門一般セッション(10):修復と抑制)

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  • G030101 Evaluation of displacement distribution at the tip of fatigue cracks healed by controlling high-density electric current field

抄録

The technique to heal a fatigue crack in a stainless steel by controlling the high-density electric current field was studied. The high-density electric current field was applied at the crack tip using closely spaced electrodes. The crack on the specimen surface was observed by scanning electron microscope (SEM) before and after applying the high-density pulse current to examine the effect of the high-density electric current field on the fatigue crack. In addition, the displacement distribution was obtained by a digital image correlation method. With those data, the change of the crack shape was evaluated quantitatively. The experimental results showed that the fatigue crack was closed by the electrical stimulation.

収録刊行物

  • 年次大会

    年次大会 2011 (0), _G030101-1-_G030101-3, 2011

    一般社団法人 日本機械学会

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