増分ねじり衝撃による増分波の伝ぱ速度と構成式の検討

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書誌事項

タイトル別名
  • Experimental Study of Incremental Wave Velocities under Torsional Impact and Discussion on a Constitutive Equation
  • ゾウブン ネジリ ショウゲキ ニヨル ゾウブンハ ノ デンパ ソクド ト コウ

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説明

Propagation velocities of the incremental torsional wave were measured on commercial pure aluminum and copper specimens through the experiments in which incremental torsional impacts were applied to the tubular specimens pre-stressed torsionally to various plastic ranges. It became clear by these experimental results that, for both materials, the incremental wave velocity coincided with the elastic torsional wave velocity, and so the component of the instantaneous plastic response did not appear in the stress levels attained to by usual techniques.<br>A constitutive equation was proposed, which can describe not only a boundary limit of the region where the plastic deformation is caused mainly by the movement of dislocations, but also various material behaviors in a wide range of strain rates.

収録刊行物

  • 材料

    材料 30 (331), 360-365, 1981

    公益社団法人 日本材料学会

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