| 非恒幅载荷下含表面裂纹对焊接头疲劳寿命的估算 |
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| 引用本文： | 赵建平,黄文龙,朱薇. 非恒幅载荷下含表面裂纹对焊接头疲劳寿命的估算[J]. 陶瓷科学与艺术, 1996, 0(2) |
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| 作者姓名： | 赵建平 黄文龙 朱薇 |
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| 作者单位： | 南京化工大学机械工程系 |
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| 摘 要： | 通过几种非恒幅载荷疲劳寿命的计算,得出基于Ｐａｒｉｓ公式的等效载荷的ＣｙｃｌｅｂｙＣｙｃｌｅ方法计算疲劳寿命是一种有效的工程方法,它具有精度高、理论严密、易于实现等特点,同时非恒幅载荷下含表面裂纹对焊接头疲劳试验也证实了这个结论。
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| 关 键 词： | 变幅疲劳 疲劳寿命计算方法 焊接接头 表面裂纹 |
STUDY OF FATIGUE LIFE OF BUTT-WELDING JOINT CONTAINING SURFACE CRACK UNDER NON-CONSTANT SPECTRUM LOADING |
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| Zhao Jianping,Huang Wenlong,Zhu Wei. STUDY OF FATIGUE LIFE OF BUTT-WELDING JOINT CONTAINING SURFACE CRACK UNDER NON-CONSTANT SPECTRUM LOADING[J]. Ceramics Science & Art, 1996, 0(2) |
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| Authors: | Zhao Jianping Huang Wenlong Zhu Wei |
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| Abstract: | Through several calculation of the fatigue life of non-mnstant spectrum loading,the method of"Cycle by Cycle"based on the equivalent loading of Paris equation is made.It is a valuable method to calculate the fatigue Iife with high precision,sound theory and convenience.The calculated results were tested by the fatigue experiments of but t-welding joints containg surface crack under the non-constant spectrum loading. |
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| Keywords: | variable amplitude loading fatigue life welding joint surface crack |
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