| 复合材料正交叠层板最终拉伸强度的细观统计分析 |
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| 引用本文： | 曾庆敦,马锐,范赋群.复合材料正交叠层板最终拉伸强度的细观统计分析[J].力学学报,1994,26(4):451-461. |
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| 作者姓名： | 曾庆敦 马锐 范赋群 |
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| 作者单位： | 华南理工大学工程力学系 |
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| 摘 要： | 本文对复合材料正交叠层板［０／９０／０］的最终拉伸破坏行为进行了研究．首先，提出一种修正的剪滞分析方法，求解叠层中由９０°层的基体开裂和０°层的部分纤维断裂相互作用所导致的应力重新分布；然后，采用随机临界核统计模型，对叠层板的最终破坏进行了细观统计分析．对［Ｏ＿２／９０＿ｍ］＿ｓ、［Ｏ＿４／９０＿ｍ］＿ｓ碳／环氧和［Ｏ＿４／９０＿ｍ］＿ｓ玻璃／环氧的计算结果表明，估计的最终拉伸强度与现有的实验结果有较好的符合．
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| 关 键 词： | 正交叠层，最终破坏，剪滞分析，随机临界核，破坏概率 |
MICRO-STATISTICAL ANALYSIS OF ULTIMATE TENSILE STRENGTH OF CROSSPLY LAMINATES |
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| Zeng Qingdun, Ma Rui, Fan Fuqun.MICRO-STATISTICAL ANALYSIS OF ULTIMATE TENSILE STRENGTH OF CROSSPLY LAMINATES[J].chinese journal of theoretical and applied mechanics,1994,26(4):451-461. |
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| Authors: | Zeng Qingdun Ma Rui Fan Fuqun |
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| Abstract: | This paper investigates the ultimate failure behavior of0/90/0]crossplylaminates under uniaxial tension.A modified shear-lag model is first proposed for solvingthe stress redistributions due to both the failure of the 90° ply and the breakage of somefibers in the 0° plies. Next,the random critical-core probability model is used to analyzemicroscopically the ultimate failure of crossply laminates. The predictions of the ultimatefailure strength of0_2/90_m]_s and0_4/90_m]_s graphite epoxy and 0_4/90_m]_s ... |
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| Keywords: | crossply laminates ultimate failure shear-lag analysis random critical-core failure probability |
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