| Effect of Pre-loading on Short Fatigue Crack Growth at a Notch |
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| 引用本文： | 徐可为,何家文,周惠久. Effect of Pre-loading on Short Fatigue Crack Growth at a Notch[J]. 材料科学技术学报, 1992, 8(2): 79-83 |
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| 作者姓名： | 徐可为 何家文 周惠久 |
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| 作者单位： | Research Institute for Strength of Metals Xi'an Jiaotong University，Xi'an，710049，China To whom correspondence should be addressed，Research Institute for Strength of Metals，Xi'an Jiaotong University，Xi'an，710049，China，Research Institute for Strength of Metals，Xi'an Jiaotong University，Xi'an，710049，China |
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| 摘 要： | Results indicate that under cyclic tension thegrowth rate of short fatigue crack from notch rootwill be lowered greatly by tensile pre-loading,butonly a little change by compressive pre-loading.The effect of tensile pre-loading will decrease withthe increase of stress ratio.The variation of shortfatigue crack growth rate is related to the residualstress distribution around notch root.
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| 收稿时间： | 1992-03-28 |
Effect of Pre-loading on Short Fatigue Crack Growth at a Notch |
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| XU Kewei HE Jiawen ZHOU Huijiu Research Institute for Strength of Metals,Xi''an Jiaotong University,Xi''an,,China+ To whom correspondence should be addressed. Effect of Pre-loading on Short Fatigue Crack Growth at a Notch[J]. Journal of Materials Science & Technology, 1992, 8(2): 79-83 |
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| Authors: | XU Kewei HE Jiawen ZHOU Huijiu Research Institute for Strength of Metals Xi''an Jiaotong University Xi''an China+ To whom correspondence should be addressed |
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| Abstract: | Results indicate that under cyclic tension the growth rate of short fatigue crack from notch root will be lowered greatly by tensile pre-loading,but only a little change by compressive pre-loading. The effect of tensile pre-loading will decrease with the increase of stress ratio.The variation of short fatigue crack growth rate is related to the residual stress distribution around notch root. |
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| Keywords: | fatigue crack growth residual stress notch X-ray diffraction |
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