Relation between thermal conductivity and coordination number for fibre-reinforced composite with random distribution of fibres

IF 0.8 Q4 THERMODYNAMICS

Archives of Thermodynamics Pub Date : 2023-07-20 DOI:10.24425/ather.2019.128288

P. Darnowski

引用次数: 1

Abstract

Transverse effective thermal conductivity of the random unidirectional fibre-reinforced composite was studied. The geometry was circular with random patterns formed using random sequential addition method. Composite geometries for different volume fraction and fibre radii were generated and their effective thermal conductivities (ETC) were calculated. Influence of fibre-matrix conductivity ratio on composite ETC was investigated for high and low values. Patterns were described by a set of coordination numbers (CN) and correlations between ETC and CN were constructed. The correlations were compared with available formulae presented in literature. Additionally, symmetry of the conductivity tensor for the studied geometries of fibres was analysed.

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纤维随机分布纤维增强复合材料的导热系数与配位数的关系

研究了无规单向纤维增强复合材料的横向有效导热系数。几何结构是圆形的，使用随机顺序加法形成随机图案。生成了不同体积分数和纤维半径的复合材料几何形状，并计算了它们的有效热导率（ETC）。研究了纤维基体导电率对复合材料ETC的影响。模式由一组配位数（CN）描述，并构建了ETC和CN之间的相关性。将相关性与文献中提供的可用公式进行了比较。此外，还分析了所研究的纤维几何结构的电导率张量的对称性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Archives of Thermodynamics THERMODYNAMICS-

CiteScore

1.80

自引率

22.20%

发文量

期刊介绍： The aim of the Archives of Thermodynamics is to disseminate knowledge between scientists and engineers interested in thermodynamics and heat transfer and to provide a forum for original research conducted in Central and Eastern Europe, as well as all over the world. The journal encompass all aspect of the field, ranging from classical thermodynamics, through conduction heat transfer to thermodynamic aspects of multiphase flow. Both theoretical and applied contributions are welcome. Only original papers written in English are consider for publication.