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| 引用本文： | 孙德强,张卫红,孙玉瑾.??????о?????????????Ч?????[J].力学与实践,2008,30(1):35-40. |
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| 作者姓名： | 孙德强 张卫红 孙玉瑾 |
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| 作者单位： | 西北工业大学机电学院，陕西 西安 710072 西北工业大学中法并行工程联合实验室 710072 |
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| 基金项目： | 西安理工大学科学研究计划项目X类 |
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| 摘 要： | 考虑共面载荷作用时薄壁蜂窝铝孔壁的弯曲、伸缩和剪切变形，基于Timoshenko粱理论精
确推导出了其共面弹性模量的计算公式，并利用壳单元设计了利用蜂窝铝特征单元来求共异
面弹性模量的有限元方法. 对厂家提供的两种蜂窝样品分别利用理论和有限元法进行了计算，
计算结果和实验数据相吻合，证明理论公式和有限元法的正确性. 最后就结构参数对蜂窝铝
各弹性模量相关材料效率的影响规律进行了分析.
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| 关 键 词： | 蜂窝铝 共异面弹性模量 有限元数值模拟 材料效率 |
| 收稿时间： | 2007-03-20 |
| 修稿时间： | 2007-11-13 |
ELASTIC MODULI AND MATERIAL EFFICIENCY OF ALUMINUM HONEYCOMB CORES |
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| SUN Deqiang,ZHANG Weihong,SUN Yujin.ELASTIC MODULI AND MATERIAL EFFICIENCY OF ALUMINUM HONEYCOMB CORES[J].Mechanics and Engineering,2008,30(1):35-40. |
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| Authors: | SUN Deqiang ZHANG Weihong SUN Yujin |
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| Abstract: | With bending, shear and tension deformations being considered in the
thin-walled beams within aluminum honeycomb cores under in-plane loadings, the
analytical formulas for the in-plane elastic moduli of the aluminum honeycomb
cores are derived based on Timoshenko beam theory. The finite element
simulation methods for calculating these moduli for a representative
unit cell are proposed based on shell elements. The calculations on the
elastic moduli of two kinds of aluminum honeycomb cores
are carried out, respectively, by using the theoretical and
finite element methods. The agreement between the calculated results and
the experimental data has verified the
theoretical formulas and finite element simulation method.
Finally, the effects of aluminum honeycomb cores' configuration parameters
on their material efficiency are analyzed. |
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| Keywords: | aluminum honeycomb core in-plane and out-of-plane elastic moduli finite element simulation material efficiency |
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