| 引用本文: | 袁端才,徐文明,蒋志刚,等.剪切变形对夹芯复合材料悬臂箱梁挠度的影响.[J].国防科技大学学报,2009,31(3):33-36.[点击复制] |
| YUAN Duancai,XU Wenming,JIANG Zhigang,et al.Flexibility Effect of Shearing Deformation on Cantilever Box Girder of Sandwich Composite Materials[J].Journal of National University of Defense Technology,2009,31(3):33-36[点击复制] |
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| 剪切变形对夹芯复合材料悬臂箱梁挠度的影响 |
| 袁端才1, 徐文明1, 蒋志刚1, 蒙上阳2 |
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(1.国防科技大学 指挥军官基础教育学院，湖南 长沙 410072;2.中国人民解放军63961部队，北京 100012)
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| 摘要: |
| 为了分析剪切变形对夹芯复合材料悬臂箱梁挠度的影响，推导了夹芯复合材料薄壁箱梁的等效弯曲刚度和剪切刚度，将夹芯复合材料悬臂箱梁等效为具有等跨度等刚度的均质箱梁；利用初等梁理论得到了考虑剪切变形的夹芯复合材料悬臂箱梁的挠曲线方程；分析了剪切变形对夹芯复合材料薄壁箱梁挠度的影响，为复合材料薄壁箱梁的设计提供了理论参考。 |
| 关键词: 夹芯复合材料 悬臂箱梁 初等梁理论 剪切变形 |
| DOI： |
| 投稿日期：2008-07-07 |
| 基金项目: |
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| Flexibility Effect of Shearing Deformation on Cantilever Box Girder of Sandwich Composite Materials |
| YUAN Duancai1, XU Wenming1, JIANG Zhigang1, MENG Shangyang2 |
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(1.College of Basic Education for Commanding Officers, National Univ. of Defense Technology， Changsha 410073， China;2.Chinese People's Libration Army 63961 Unit, Beijing 100012，China)
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| Abstract: |
| To analyze the flexibility effect of shearing deformation on cantilever box girder of sandwich composite materials，the equivalent bending stiffness and shear stiffness of the box girder are deduced，the cantilever box girder is equivalent to an isotropy box girder which has the same long-span and stiffness. The flexibility which takes shear deformation into account of sandwich composite materials of cantilever box girder is analyzed by primary beam theory. The effect of shear deformation to the whole flexibility of the box girder is analyzed. The methods and conclusions are available for the designers on box girder of sandwich composite materials. |
| Keywords: sandwich composite materials cantilever box girder primary beam theory shearing deformation |
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