| 干涉配合连接与应力腐蚀断裂 |
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| 引用本文： | 杨汉祥,吴金泉.干涉配合连接与应力腐蚀断裂[J].航空学报,1984,5(1):46-50. |
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| 作者姓名： | 杨汉祥 吴金泉 |
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| 作者单位： | 中国航空标准化研究所
(杨汉祥)，北京航空工艺研究所(吴金泉) |
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| 摘 要： | 本文研究了结构连接部位的应力分布,给出了干涉配合连接结构在外载荷作用下的应力腐蚀试验结果,分析了干涉量对应力腐蚀断裂的影响,对于干涉配合连接与应力腐蚀断裂的关系问题,在看法上与有关文献不尽相同。 由于干涉配合克服了严重的应力集中,所以干涉配合连接结构在外载荷作用下,耐应力腐蚀断裂的时间比普通连接的长,并且耐应力腐蚀断裂的时间随着相对干涉量的增加而增长。
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| 收稿时间： | 1982-09-01; |
INTERFERENCE FIT JOINT AND STRESS-CORROSION CRACKING |
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| Yang Hanxiang,Wu Jinquan.INTERFERENCE FIT JOINT AND STRESS-CORROSION CRACKING[J].Acta Aeronautica et Astronautica Sinica,1984,5(1):46-50. |
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| Authors: | Yang Hanxiang Wu Jinquan |
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| Institution: | 1. China Aviation Standardization Institute;2. Beijing Aeronautical Technology Institute |
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| Abstract: | A new view on relationship between interference fit joint and stress-corrosion cracking has been reached as a consequence of investigation on stress distribution in construction joints and analysis of effects of interference fit on stress-corrosion cracking and the results from stress-corrosion tests of interference fit joints under external loads are presented.The tests of stress-corrosion in interference fit joints were completed abroad without external loads. The stress-corrosion occurred when the prestress of the interference fit exceeded the stress-corrosion threshold stress of a construction material. Furthermore, the greater the amount of the interference fit, the more serious the stress corrosion was.The results of our experimental investigation demonstrate that the duration of the stress-corrosion cracking in the interference fit joint is longer than that of an ordinary one under external loads, because the interference fit overcomes the serious stress concentration. Moreover, the duration of the stress-corrosion cracking increases with enhancement of the relative interference. |
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