| 含孔复合材料层合板孔边应力集中的近似计算 |
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| 引用本文： | 朱西平,郭章新,韩小平,支希哲.含孔复合材料层合板孔边应力集中的近似计算[J].航空材料学报,2009,29(2):71-75. |
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| 作者姓名： | 朱西平 郭章新 韩小平 支希哲 |
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| 作者单位： | 西北工业大学,工程力学系,西安,710072 |
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| 摘 要： | 针对含圆孔有限大复合材料层板的应力集中间题,提出一种计算孔边应力分布及应力集中系数的方法:先利用经典层板理论,将复合材料层合板化归为各向异性板;再将各向异性板等效转换为一偏轴拉伸的单向纤维层板;最后利用含圆孔偏轴单向板的孔边应力计算公式来分析一般铺层层合板孔边应力集中情况.根据所推导的含孔有限宽度复合材料层合板应力集中系数的表达式,分析讨论了板宽/孔径比、铺层比例、铺层方式、材料性能参数等因素对孔边应力集中的影响.
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| 关 键 词： | 含孔复合材料层板 各向异性板 孔边应力 应力集中系数 |
Approximate Calculation of Stress Distribution Near Hole for Composite Laminates with Finite Width |
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| ZHU Xi-ping,GU Zhang-xin,HAN Xiao-ping,ZHI Xi-zhe.Approximate Calculation of Stress Distribution Near Hole for Composite Laminates with Finite Width[J].Journal of Aeronautical Materials,2009,29(2):71-75. |
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| Authors: | ZHU Xi-ping GU Zhang-xin HAN Xiao-ping ZHI Xi-zhe |
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| Abstract: | Theoretical calculation method for stress concentrations in anisotropic plates with a circular hole was applied to composite laminates with a circular hole.Based on the classical laminated plate theory,a finite composite laminate with a circular hole was treated as an anisotropic plate.Then the anisotropic plate equivalently was transformed into a unidirectional composite laminate subjected to off-axial loading.Finally stress concentration factor of composite laminates with a circular hole was obtained by m... |
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| Keywords: | composite laminates with holes anisotropic plate stress distribution near hole stress concentration factor |
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