| 类桁架夹层板的等效弹性常数研究 |
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| 引用本文： | 周加喜,邓子辰.类桁架夹层板的等效弹性常数研究[J].固体力学学报,2008,29(2). |
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| 作者姓名： | 周加喜 邓子辰 |
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| 作者单位： | 1. 西北工业大学工程力学系,西安,710072
2. 西北工业大学工程力学系,西安,710072;大连理工大学工业装备结构分析国家重点实验室,大连,116024 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)
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西北工业大学基础研究基金
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国家重点实验室基金 |
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| 摘 要： | 从应变能等效出发,将具有周期性分布的夹层板的类桁架夹芯与各向异性连续材料等效,给出了相应的宏观等效弹性常数,进而用有限元方法计算了实际夹层板和等效夹层板的结构响应,用一个算例证明了该文方法的有效性.通过对类桁架夹芯的等效弹性常数的计算,结果表明该文方法可以得到较为准确的等效弹性常数,且较其它类型的均匀化方法大大降低了计算量.
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| 关 键 词： | 类桁架夹层板 等效弹性常数 代表体积元 均匀化 |
ON THE EFFECTIVE ELASTIC CONSTANTS OF TRUSS -CORE PANEL |
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| Jiaxi Zhou,Zichen Deng.ON THE EFFECTIVE ELASTIC CONSTANTS OF TRUSS -CORE PANEL[J].Acta Mechnica Solida Sinica,2008,29(2). |
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| Authors: | Jiaxi Zhou Zichen Deng |
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| Abstract: | The truss-core is equivalent to the anisotropic and homogenous material based on the equivalent strain energy principle, and the corresponding macroscopically effective elastic constants are obtained. The finite element computation on the responses of full-scale and equivalent sandwich panel is presented, and the accuracy of the method is validated by one example. The computational at results indicate that accurate effective elastic constants can be obtained with less computer time cost comparing with other homogenization methods. |
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| Keywords: | truss-core panel effective elasticity constants representative volume element (RVE) homogenization |
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