| 低应力预处理对焊接接头疲劳寿命影响规律的试验研究 |
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| 引用本文： | 房德馨 孙丰华. 低应力预处理对焊接接头疲劳寿命影响规律的试验研究[J]. 大连理工大学学报, 1993, 33(6): 647-650 |
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| 作者姓名： | 房德馨 孙丰华 |
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| 作者单位： | 大连理工大学工程力学系(房德馨)，大连理工大学工程力学系(孙丰华) |
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| 摘 要： | 通过试验，给出了低应力预处理对金属焊接接头疲劳寿命影响的规律曲线，论证了在低应力预处理作用下残余应力峰值下降，因而使疲劳寿命得以提高的机理。提出了用低应力预处理来提高焊接构件疲劳寿命的新技术，并给出了技术工艺的主要参数。
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| 关 键 词： | 疲劳寿命 焊接接头 低应力预处理 |
Study of influence on fatigue life of welded structures by vibratory stress relief |
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| Fang Dexin,Shun Fenghua. Study of influence on fatigue life of welded structures by vibratory stress relief[J]. Journal of Dalian University of Technology, 1993, 33(6): 647-650 |
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| Authors: | Fang Dexin Shun Fenghua |
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| Abstract: | This paper presents a curve of influence of vibratory stress relief on fatigue life of welded structures. It is shown that residual stress in welded structures can be relieved by VSR so that their fatigue life can last longer in service. A new processing has been recommended on the basis of the results of the study- using VSR technology to lengthen the fatigue life of welded structures and its parameter are also presented. |
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| Keywords: | residual stress fatigue life welding joints pretreatment |
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