切欠き板試験片の弾塑性ひずみ挙動の研究 : 1.鋼材に引張り荷重作用の場合

概要

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The test to investigate the elastic-plastic strain behavior ahead of notch in plate specimen with notches made of steel by using strain gages under tensile monotonic load is conducted. Two kind of specimens made of SS400 material are used. One kind of specimen is specimens with three kind of notch root radius and constant notch depth. Another kind of specimen is those with three kind of notch depth and constant notch root radius. From test result, we show the relation between strain and distance from notch root. Next we show the relation between strain ratio and nondimensional distance from notch root. The effect of notch root radius or notch depth on strain distribution is discussed. The strain concentration factor is presented for elastic-plastic region at notch root.
長崎大学の論文