| LY12铝合金初始不连续状态研究 |
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| 引用本文： | 卞贵学,陈跃良,郁大照.LY12铝合金初始不连续状态研究[J].强度与环境,2007,34(5):58-63. |
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| 作者姓名： | 卞贵学 陈跃良 郁大照 |
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| 作者单位： | 1. 海军航空工程学院,研究生管理大队,烟台,264001
2. 海军航空工程学院,青岛分院,青岛,266041 |
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| 基金项目： | 国家自然科学基金;解放军总装备部预研项目 |
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| 摘 要： | 通过疲劳试验得到LY12铝合金新标准试验件的疲劳试验数据,以疲劳实验数据为基础通过断裂力学的方法应用AFGROW来反推LY12铝合金的初始不连续状态(IDS)。选取四种分布对IDS尺寸值进行统计特征研究,结果表明IDS值较符合三参Weibull分布。给出了LY12铝合金新标准实验件的疲劳寿命预测实例。并对不同IDS值的试验件的断口进行了对比和分析。
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| 关 键 词： | 初始不连续状态 铝合金 |
| 文章编号： | 1006-3919（2007）05-0058-06 |
| 修稿时间： | 2007-05-12 |
Study on initial discontinuity state of LY12 aluminium alloy |
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| BIAN Gui-xue,CHEN Yue-liang,YU Da-zhao.Study on initial discontinuity state of LY12 aluminium alloy[J].Structure & Environment Engineering,2007,34(5):58-63. |
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| Authors: | BIAN Gui-xue CHEN Yue-liang YU Da-zhao |
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| Institution: | 1 Graduate Students Brigade of Naval Aeronautical Engineering Institute,Yantai 264001, Chin;2 Qingdao Branch of Naval Aeronautical Engineering Institute,Qingdao 266041, China |
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| Abstract: | Through fatigue experiment get the fatigue life data of the new standard experimental piece of LY12 aluminum alloy.Based on fatigue life data and through method of fracture mechanics AFGROW obtain initial discontinuity state of LY12 aluminum alloy.Statistical investigation for value of IDS has been conducted by four probability distribution function.The result show that the IDS for LY12 aluminum alloy is in conformity three parameters Weibull distribution.And the example of predicted fatigue life of the new standard experimental piece of LY12 aluminum alloy was given.Disconnection faces of experimental piece of the different IDS value were contrasted and analyzed. |
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| Keywords: | AFGROW |
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