Prediction of elastic properties of polyurethane-infiltrated carbon foams

M. Janus-Michalska
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引用次数: 1

Abstract

This paper presents micromechanical approach to assessment of elastic properties of composite polyurethane-carbon foams. Analysis is based on specific choice of RVE combined with micro-macro transition. It leads to evaluation of strength and elastic constants of a composite. Foam behaviour is investigated numerically. Solid skeleton part shape is based on the tetrahedron cut out with spheres. 3D unit cell model is FE discetized. Calculations are performed for foams of selected densities using ABAQUS system. The comparison shows good agreement between the theoretical approach and experimental data. The presented method may be applied to design novel materials such as graphitized foam and nano composites and tailoring these materials for desired elastic properties.
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聚氨酯渗碳泡沫塑料弹性性能的预测
本文提出了评价聚氨酯-碳复合泡沫材料弹性性能的微力学方法。分析是基于RVE的具体选择,并结合微观宏观转型。它可用于评价复合材料的强度和弹性常数。对泡沫特性进行了数值研究。实体骨架部分的形状是基于球体切割出来的四面体。三维单元胞模型进行有限元分解。采用ABAQUS系统对选定密度的泡沫进行了计算。结果表明,理论方法与实验数据吻合较好。所提出的方法可用于设计新型材料,如石墨化泡沫和纳米复合材料,并根据所需的弹性性能定制这些材料。
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来源期刊
International Journal of Mechanics and Control
International Journal of Mechanics and Control Engineering-Computational Mechanics
CiteScore
2.10
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0.00%
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