| 基于三维等效弹性模量的复合材料中厚层合板稳定性分析 |
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| 引用本文： | 董永朋,王佩艳,刘洋,王富生,岳珠峰. 基于三维等效弹性模量的复合材料中厚层合板稳定性分析[J]. 材料科学与工程学报, 2011, 29(5): 725-728 |
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| 作者姓名： | 董永朋 王佩艳 刘洋 王富生 岳珠峰 |
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| 作者单位： | 西北工业大学工程力学系,陕西西安,710129 |
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| 基金项目： | 国家高技术研究发展专项863资助项目(2009AA04Z418);高等学校学科创新引智计划资助项目(B07050) |
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| 摘 要： | 通过对复合材料层合板刚度矩阵的转换,将中厚板等效为3D各向异性板,并将得到的等效弹性模量运用到有限元模型中,对轴压载荷作用下的中厚层合板进行稳定性分析。结果表明：有限元模拟得到的屈曲载荷与工程经验公式得到的屈曲载荷相差很小,简支情况下相差5.86%,固支情况下相差6.47%。证明这种等效方法是可行的,且可以提高复合材料中厚板的三维建模效率。
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| 关 键 词： | 刚度矩阵 中厚板 稳定性 等效模量 |
Analysis of Stability of Moderately Thick Composite Laminates Based on Three-dimensional Effective Elastic Modulus |
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| DONG Yong-peng,WANG Pei-yan,LIU Yang,WANG Fu-sheng,YUE Zhu-feng. Analysis of Stability of Moderately Thick Composite Laminates Based on Three-dimensional Effective Elastic Modulus[J]. Journal of Materials Science and Engineering, 2011, 29(5): 725-728 |
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| Authors: | DONG Yong-peng WANG Pei-yan LIU Yang WANG Fu-sheng YUE Zhu-feng |
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| Affiliation: | (Department of Engineering Mechanics,Northwestern Polytechnical University,Xi’an 710129,China) |
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| Abstract: | Based on stiffness matrix,the modulus of moderately thick composite laminates were translated to those of a 3D anisotropic solid.The stability of the laminates under axial compressive loading was analyzed by finite element model using effective elastic modulus.It shows that the buckling loading calculated by the FEM is close to that obtained from experiential formula,the difference is 5.86% under simple supported conditions and 6.47% under clamped supported conditions.It is proved that this method is feasible and can easily establish the model of moderately thick composite laminates in three-dimensional coordinates. |
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| Keywords: | stiffness matrix moderately thick composite laminates stability effective elastic modulus |
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