Thermal conductivities of iso-volume centre-symmetric honeycombs

L. Boldrin; F. Scarpa; R. Rajasekaran

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Thermal conductivities of iso-volume centre-symmetric honeycombs

机译：等体积中心对称蜂窝的导热系数

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摘要

The paper describes the equivalent thermal conductivities or iso-volume periodic honeycomb concepts with 3 and 4-connectivities along the in-plane and out-of-plane principal directions. A centre-symmetric 3-connectivity hexagonal layout and a centre-symmetric 4-connectivity cross-chiral configuration are considered. Analytical closed-form solutions of the equivalent thermal conductivities are derived and compared against Finite Element simulations, providing an excellent match. Parametric analyses show the influence of several geometry parameters of the unit cells over the homogenised thermal conductivities along the three principal directions. The analysis shows the capability of tailoring the core geometrical parameters of these iso-volume honeycomb concepts to achieve a desired thermal response in structural sandwich panels or core fillers, for which the coupled thermo-mechanical performance is paramount.

机译：本文描述了沿平面内和平面外主方向具有3和4个连通性的等效热导率或等体积周期性蜂窝概念。考虑了中心对称的3连通性六边形布局和中心对称的4连通性交叉手性构型。得出等效热导率的解析形式闭式解，并将其与有限元模拟进行比较，从而提供出色的匹配性。参数分析显示了晶胞的几个几何参数对沿三个主要方向均匀化的热导率的影响。分析表明，可以调整这些等体积蜂窝概念的核心几何参数，以在结构夹心板或核心填充物中实现所需的热响应，而热力学性能是至关重要的。

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来源
《Composite Structures》 |2014年第7期|498-506|共9页
作者
L. Boldrin; F. Scarpa; R. Rajasekaran;
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作者单位

Advanced Composites Centre for Innovation and Science (ACCIS), University of Bristol, BS8 1TR Bristol, UK;

Advanced Composites Centre for Innovation and Science (ACCIS), University of Bristol, BS8 1TR Bristol, UK;

Mechanical Methods, Rolls-Royce plc, PO Box 31, DE24 8BJ Derby, UK;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Iso-volume; Honeycombs; Hexagonal; Cross-chiral; Thermal conductivity;

机译：等体积蜂巢;六角形交叉手性导热系数;

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8. Thermal conductivity of Rene 41 honeycomb panels [R] . Deriugin, V. 1980

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Thermal conductivities of iso-volume centre-symmetric honeycombs

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