| 接管环带区表面裂纹疲劳扩展规律的研究 |
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| 引用本文： | 金志江 王宽福. 接管环带区表面裂纹疲劳扩展规律的研究[J]. 化工机械, 1996, 23(4): 21-24,54 |
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| 作者姓名： | 金志江 王宽福 |
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| 作者单位： | 浙江大学 |
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| 摘 要： | 在实物容器疲劳试验的基础上，采用按形变功率定义求得的循环Ｊ积分幅度ΔＪ来描述接管环带区表面裂纹的疲劳扩展速率，并提出了计算表达式。结果表明，在高应变情况下，ΔＪ是一个有效的疲劳控制参量，经修正后的ΔＪｅｆ能较好地描述环带区表面裂纹疲劳扩展规律
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| 关 键 词： | 环带区表面裂纹疲劳扩展 |
A study of the fatigue growth laws of the surface cracks in the annulus belt area of nozzles. |
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| Jin Zhijiang,Wang Kuanfu. A study of the fatigue growth laws of the surface cracks in the annulus belt area of nozzles.[J]. Chemical Engineering & Machinery, 1996, 23(4): 21-24,54 |
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| Authors: | Jin Zhijiang Wang Kuanfu |
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| Abstract: | ased on a fatigue test of vessels,the cycle J integral margin ΔJ determined with deformation power was used to describe the fatigue growth laws of the surface cracks in the annulus belt area of nozzles,and a calcuation formulation was proposed.The result showed that the ΔJ was an effective fatigue control parameter under the condition of high strain.The modified ΔJ eff could describe the fatigue growth laws of the surface cracks in the annulus belt area of nozzles better. |
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| Keywords: | Annulus Belt Area Surface Crack Fatigue Growth |
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