Numerical analyses of the thermal conductivity of random hollow sphere structures

被引：41

作者：

Fiedler, T. ^{[1
]}

Loeffler, R. ^{[2
]}

Bernthaler, T. ^{[2
]}

Winkler, R. ^{[2
]}

Belova, I. V. ^{[1
]}

Murch, G. E. ^{[1
]}

Oechsner, A. ^{[3
]}

机构：

[1] Univ Newcastle, Sch Engn, Ctr Geotech & Mat Modelling, Ctr Mass & Thermal Transport Engn Mat, Callaghan, NSW 2308, Australia

[2] Univ Aalen, Fac Mech & Mat Engn, Dept Surface Engn & Mat Sci, D-73430 Aalen, Germany

[3] Tech Univ Malaysia, Fac Mech Engn, Dept Appl Mech, Skudai 81310, Johor, Malaysia

来源：

MATERIALS LETTERS | 2009年 / 63卷 / 13-14期

关键词：

Thermal properties; Composite materials; Cellular metals; Computer simulation; Porosity;

D O I：

10.1016/j.matlet.2008.10.030

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

This paper presents Lattice Monte Carlo (LMC) and Finite-Element (FE) analyses on the effective thermal conductivity of sintered Metallic Hollow Spheres Structures (MHSS). A novel analysis technique applying LMC permits the utilisation of large high resolution models and can be based on Computed Tomography (CT) images. As a consequence. simulations are performed using the real geometry and no simplifications, such as the use of model structures, need to be introduced. In the first part, the influence of the micro-porosity on the effective thermal conductivity of the cell wall material is determined. Using these results, the second part of the analyses directly addresses the thermal properties of sintered MHSS. The findings of the LMC analyses are compared with FE results. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1125 / 1127

页数：3

共 15 条

[1]

*AK STEEL, 2008, AK STEEL MAN INF

[2]

[Anonymous], DIFFUSION FUNDAMENTA

[3]

Lightweight, hollow-sphere-composite (HSC) materials for mechanical engineering applications [J].