| 初始疲劳质量的一种简化模型 |
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| 引用本文： | 陈传尧,高大兴.初始疲劳质量的一种简化模型[J].航空学报,1995,16(2):91-94. |
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| 作者姓名： | 陈传尧 高大兴 |
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| 作者单位： | 华中理工大学力学系, 武汉, 430074 |
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| 摘 要： | 提出描述结构细节初始疲劳质量的简化模型。此模型只需一种应力水平下的耐久性试验结果和细节Ｓ－Ｎ曲线之指数值ｍ，即可描述初始疲劳质量，进行耐久性分析。用一套耐久性试验数据验证了简化简模型的可用性。最后，还给出了由裂纹尺寸和裂纹超过数概率定义的Ｓ－ｔ关系，使结构耐久性分析简单易行。
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| 关 键 词： | 耐久性 疲劳试验 模型 |
| 收稿时间： | 1994-03-02 |
| 修稿时间： | 1994-07-20 |
A SIMPLIFIED IFQ MODEL FOR DURABILITY ANALYSIS OF STRUCTURES |
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| Chen Chuanyao,Gao Daxing.A SIMPLIFIED IFQ MODEL FOR DURABILITY ANALYSIS OF STRUCTURES[J].Acta Aeronautica et Astronautica Sinica,1995,16(2):91-94. |
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| Authors: | Chen Chuanyao Gao Daxing |
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| Institution: | Dept. Mechanic, HuaZhong Universit of Science and Technology, Wuhan, 430074 |
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| Abstract: | A simplified model for describing the initial fatigue quality (IFQ) of structural details is proposed.A universal TTCI distribution,which represents the IFQ,can be obtained by using only one set of durability testing results under a given stress level and the m value of the S-N curve of details.The proposed model is then verified by fastener hole durabilit testing data.Based on the simplified IFQ model,the S-t equation defined by the crack exceedance is deduced finally,for ease in durability analysis of structures. |
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| Keywords: | durability fatique model |
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