| 冷扩孔并置入栓钉技术止裂效果研究 |
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| 引用本文： | 黄鑫,沈玫,郭阿明.冷扩孔并置入栓钉技术止裂效果研究[J].工程建设与设计,2012(6):67-69. |
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| 作者姓名： | 黄鑫 沈玫 郭阿明 |
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| 作者单位： | 1. 中国中元国际工程公司,北京,100089
2. 中国中轻国际工程有限公司,北京,100026 |
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| 摘 要： | 采用有限单元法对冷扩孔并置入栓钉处理措施进行数值模拟,并对循环荷载下止裂孔孔边应力、应变状态的分析表明,冷扩孔并置入栓钉降低了应力集中部位的应变幅,从而延长疲劳裂纹在止裂孔边的再生寿命,栓钉直径均会影响钻孔止裂相关技术的止裂效果.
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| 关 键 词： | 普通止裂孔 冷扩孔并置入栓钉 应变幅 裂纹再生寿命 |
Study on Fatigue Repair with Stop Hole Techniques |
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| HUANG Xin
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SHEN Mei
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GUO A-ming.Study on Fatigue Repair with Stop Hole Techniques[J].Construction & Design for Project,2012(6):67-69. |
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| Authors: | HUANG Xin SHEN Mei GUO A-ming |
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| Affiliation: | 1.China IPPR International Engineering Corporation,Beijing 100089,China; 2.China BCEL International Engineering Co.Ltd.,Beijing 100026,China) |
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| Abstract: | To understand the mechanism of stop hole related techniques——inserting interference fit fastener are simulated numerically with finite element method.The analysis and comparison of the stress and strain around the stop hole under cyclic loading show that inserting interference fit fastener techniques reduce the strain range to extend crack re-initiation life. |
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| Keywords: | stop hole inserting interference fit fasteners magnitude of strain the life of fatigue cracking |
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