| 复合材料夹层板屈曲强度的分散性分析 |
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| 引用本文： | 俸翔,马元春,卢子兴.复合材料夹层板屈曲强度的分散性分析[J].复合材料学报,2011,28(1):132-137. |
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| 作者姓名： | 俸翔 马元春 卢子兴 |
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| 作者单位： | 北京航空航天大学航空科学与工程学院;沈阳飞机设计研究所; |
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| 基金项目： | 国家自然科学基金重点项目(10932001,11072015) |
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| 摘 要： | 将面板单层及芯层厚度、面板纤维方向角和材料参数作为随机变量,通过编制基于高阶剪切理论的随机有限元程序,对复合材料夹层板的屈曲强度分散性进行了分析,得到了不同铺层方式下夹层板屈曲强度分散系数随纤维方向角及夹层板长厚比的变化规律.并通过对屈曲强度的分散系数进行灵敏度分析,确定了影响分散系数大小的主要因素,从而为材料设计、制...
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| 关 键 词： | 复合材料夹层板 屈曲强度 分散性 高阶剪切 随机有限元 |
| 收稿时间： | 2009-01-18 |
| 修稿时间： | 2010-05-11 |
Variation analysis for buckling strength of composite sandwich plates |
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| FENG Xiang,MA Yuanchun,LU Zixing.Variation analysis for buckling strength of composite sandwich plates[J].Acta Materiae Compositae Sinica,2011,28(1):132-137. |
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| Authors: | FENG Xiang MA Yuanchun LU Zixing |
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| Affiliation: | FENG Xiang1,MA Yuanchun1,2,LU Zixing1(1.School of Aeronautics Science and Engineering,Beihang University,Beijing 100191,China,2.Shenyang Aircraft Design and Research Institute,Shenyang 110035,China) |
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| Abstract: | Considering the layer thicknesses,fiber angles and materials properties as random variables,the variation of buckling strengths for composite sandwich plates was analyzed.With the stochastic finite element method(SFEM) based on high-order shear deformation theory(HSDT),the influences of fiber angles and side-to-thickness ratios on the coefficient of variance(COV) of buckling strengths for composite sandwich plates with different stacking sequences were studied.The sensitivity degrees of COV indicate the mai... |
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| Keywords: | composite sandwich plate buckling strength variance high-order shear stochastic finite element method |
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