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具有开孔泡沫骨架的双连续相复合材料弹性模量的理论预测

, PP. 1330-1336

Keywords: 开孔泡沫,双连续相复合材料,十四面体模型,弹性地基梁,弹性模量,最小势能原理

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Abstract:

基于具有开孔泡沫骨架的双连续相复合材料(IPC)的细观结构,提出了一种十四面体弹性地基梁力学模型,结合最小势能原理推导了该IPC的弹性模量预测公式。根据文献给出的实验材料参数进行算例分析,结果表明,理论估算结果与实验值吻合良好,证明了该模型的有效性。在此基础上,进一步讨论了不同骨架材料体积含量和支柱截面形状对IPC弹性模量的影响。本文给出的半经验理论模型为表征具有开孔泡沫骨架的IPC的弹性性能提供了新思路,也为进一步预测IPC的强度性能和热物理性能奠定了基础。

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