| 飞机典型结构──含有裂纹的加筋板应力强度因子计算 |
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| 引用本文： | 尹峰,吴志红.飞机典型结构──含有裂纹的加筋板应力强度因子计算[J].沈阳航空工业学院学报,1998(4). |
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| 作者姓名： | 尹峰 吴志红 |
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| 作者单位： | 沈阳航空工业学院飞行器制造工程系(尹峰)，沈阳航空工业学院工程基础部(吴志红) |
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| 摘 要： | 本文应用复变应力函数和分区变分原理，提出了确定型材和板有裂纹的加筋板应力强度因子的计算方法，并以实例叙述了方法的应用，给出了应力强度因子的计算公式及在某一特定的结构参数下其应力强度因子随裂纹长度变化的曲线。
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| 关 键 词： | 加筋板 应力强度因子 广义变分原理 |
Calculation of Stress Intensity factors for a Crack-Stiffened Panel-Typical Structure in Airplane |
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| Yin Feng, Wu Zhihong.Calculation of Stress Intensity factors for a Crack-Stiffened Panel-Typical Structure in Airplane[J].Journal of Shenyang Institute of Aeronautical Engineering,1998(4). |
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| Authors: | Yin Feng Wu Zhihong |
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| Institution: | Yin Feng; Wu Zhihong |
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| Abstract: | In order to determine stress intensity factors for a crack-stiffened panel, a new approach is prompd based on the theory of funtions of a complex variable and generalized variational principle in mpition. A numerical example show that this approach is an effective and short-cut method. A calculation formula of stress intensity factors and curves of Stress intensity factors versus fatigue crack length are presented in this paper. |
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| Keywords: | stiffened panels stress intensity factors generalized variational principle |
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