材料
Online ISSN : 1880-7488
Print ISSN : 0514-5163
ISSN-L : 0514-5163
曲げおよびねじり応力下の疲労き裂伝ぱ速度の比較
原田 昭治大路 清嗣小倉 敬二
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ジャーナル フリー

1982 年 31 巻 340 号 p. 14-17

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Fatigue crack growth under multiaxial loading is of importance in engineering practice. In order to examine the effect of stress biaxiality on the fatigue crack growth rate, torsional (biaxial) and uniaxial bending fatigue tests were carried out in this study by using a tough-pitch copper. The experimental results showed that in the case of torsional fatigue the compressive non-singular stress acting parallel to the direction of the initial cracked plane considerably accelerated the mode I crack growth rate in comparison with the result of the uniaxial bending fatigue test.
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