Fatigue Strength of Plain and Notched Bars under Pulsating Load Varying in Two Stages

DOI Web Site Web Site

Bibliographic Information

Other Title
  • 平滑および切欠き棒の片振り二段重複荷重疲れ強さ
  • ヘイカツ オヨビ キリカキ ボウ ノ カタブリ ニダン チョウフク カジュウ ツカレ ツヨサ

Search this article

Abstract

Fatigue lives of plain and notched specimens of a heat treated carbon steel are investigated under pulsating load varying in two stages. The experiments cover the cases where the stress value of the first stage is both higher and lower than that of the second stage, the stress difference between the first and second stages is varied and the stress cycle ratio in the first stage is varied. According to the result of the experiment, Miner's hypothesis seems to be effective, if scattering of fatigue lives is taken into consideration, although some exceptions are found that cumulative cycle ratio is increased to some extent. For these exceptions, however, Miner's hypothesis gives lives in safe side in design calculations.

Journal

Details 詳細情報について

Report a problem

Back to top