疲れバウシンガー効果

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タイトル別名
  • Fatigue Bauschinger Effect
  • ツカレ バウシンガー コウカ

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抄録

The conventional Bauschinger Effect is for static load. Is the similar effect valid for repeated load? In other words, is it true that the materials subjected to the pulsating load in one direction are easy to deform under the pulsating load in the reverse direction? If it is true, the phenomenon may be called as "Fatigue Bauschinger Effect". This paper deals with the deformation behaviour of materials under multiple repeated load, relating to the above proposed new idea "Fatigue Bauschinger Effect". The material tested is 0.34% carbon steel. The pulsating torsional stresses of 2×106 or 107 cycles are applied to the specimens in one direction and the reverse direction successively, and the strain of specimen is measured by an optical method during the course of fatigue tests. As the test results, "Fatigue Bauschinger Effect" was markedly observed at the stress slightly below the yield stress.

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