薄肉中空試験片による高温疲れ試験

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書誌事項

タイトル別名
  • Fatigue Tests of Thin Walled Tubular Specimens at Elevated Temperatures
  • ウスニク チュウクウ シケンヘン ニ ヨル コウオン ツカレ シケン

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抄録

Torsional fatigue tests on 0.16%C carbon steel are made at room temperature, 350°C and 500°C. The strengths of thin walled tubular specimens where the stresses are considered to be distributed uniformly over the cross section are compared with those of solid specimens to study the effect of stress gradient on the fatigue strength. On the nominal stress basis, higher strengths are obtained in solid specimens at elevated temperatures as well as at room temperature. On the true stress basis, no difference of strength is found at room temperature. While the solid specimens are rather stronger than the tubular specimens at elevated temperatures. These results may be explained by the gradient of true stress which is smaller at room temperature than at elevated temperatures. The temperature rise of specimens during tests and the shapes of failure are also discussed.

収録刊行物

  • 日本機械学会誌

    日本機械学会誌 64 (512), 1332-, 1961

    一般社団法人 日本機械学会

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