| 一阶和二阶金字塔点阵材料等效弹性参数研究 |
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| 引用本文： | 韩福娥,陈常青,沈亚鹏. 一阶和二阶金字塔点阵材料等效弹性参数研究[J]. 固体力学学报, 2011, 0(Z1) |
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| 作者姓名： | 韩福娥 陈常青 沈亚鹏 |
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| 作者单位： | 西安工程大学理学院;清华大学工程力学系;西安交通大学航天航空学院; |
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| 基金项目： | 973项目(2006AA03Z519); 国家自然科学基金(11002106,11021202); 陕西省教育厅项目(2011JK0546)资助 |
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| 摘 要： | 本文通过分析一阶和二阶金字塔点阵夹芯结构的受力特点,研究了它们的等效弹性参数,得到了一阶和二阶芯体在受到3方向简单压缩及1、2方向单向剪切载荷时的等效弹性参数的解析解.此外,还分别建立了三维一阶和二阶点阵夹芯结构的有限元模型,并将有限元解与相同条件下的理论解进行了比较,验证了本文理论计算的正确性.
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| 关 键 词： | 金字塔点阵 等效弹性参数 有限元分析 |
RESEARCH ON THE EFFECTIVE ELASTIC CONSTANTS OF THE FIRST-ORDER AND THE SECOND-ORDER PYRAMIDAL CORES |
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| Fu'e Han Changqing Chen Yapeng Shen. RESEARCH ON THE EFFECTIVE ELASTIC CONSTANTS OF THE FIRST-ORDER AND THE SECOND-ORDER PYRAMIDAL CORES[J]. Acta Mechnica Solida Sinica, 2011, 0(Z1) |
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| Authors: | Fu'e Han Changqing Chen Yapeng Shen |
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| Affiliation: | Fu'e Han1 Changqing Chen2 Yapeng Shen3(1School of Science,Xi'an Polytechnic University,Xi'an,710048)(2School of Aerospace,AML,Tsinghua University,Beijing,100084)(3School of Aerospace,Xi'an Jiaotong University,710049) |
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| Abstract: | After the forces on the first-order and the second-order pyramidal cores are analysed,the effective elastic constants of the two cores are studied and the analytical expressions of the effective elastic constants for the compressive in the 3-direction and the shears in the 1-direction and the 2-direction respectively are derived.In addition,the 3D finite element models are established and the results derived from the theory deduction are contrasted with the finite element method in order to verify the corre... |
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| Keywords: | pyramidal core the effective elastic constants the finite element analysis |
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