Finite element analysis of the mechanical properties of cellular aluminium based on micro-computed tomography

被引：77

作者：

Veyhl, C. ^{[1
]}

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

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

Fiedler, T. ^{[1
]}

机构：

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

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2011年 / 528卷 / 13-14期

基金：

澳大利亚研究理事会;

关键词：

Aluminium foam; Cellular materials; Porous materials; Micro-computed tomography; Finite element method; Mechanical characterisation; X-RAY MICROTOMOGRAPHY; FOAM; SOLIDS;

D O I：

10.1016/j.msea.2011.02.031

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In the present paper, the macroscopic mechanical properties of open-cell M-Pore (R) sponge (porosity of 91-93%) and closed-cell Alporas (R) foam (porosity of 80-86%) are investigated. The complex geometry of these cellular materials is scanned by micro-computed tomography and used in finite element (FE) analysis. The mechanical properties are determined by uni-axial compression simulations in three perpendicular directions (x-, y- and z-direction). M-Pore (R) and Alporas (R) exhibit the same qualitative mechanical characteristics but with quantitative differences. In both cases, strong anisotropy is observed for Young's modulus and the 0.002 offset yield stress. Furthermore, for the investigated relative density range a linear dependence between relative density and mechanical properties is found. Finally, a distinctly higher Young's modulus and 0.002 offset yield stress is observed for Alporas (R). (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：4550 / 4555

页数：6

共 29 条

[1] Size effects in ductile cellular solids. Part II: experimental results [J].