Effects of solid distribution on the stiffness and strength of metallic foams

被引：395
|
作者：
Simone, AE
Gibson, LJ
机构：
[1] MIT, Dept Civil & Environm Engn, Cambridge, MA 02139 USA
[2] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA
来源：
ACTA MATERIALIA | 1998年 / 46卷 / 06期
关键词：
Computer simulation - Finite element method - Mathematical models - Plates (structural components) - Shells (structures) - Stiffness - Strength of materials - Structural analysis;
D O I：
10.1016/S1359-6454(97)00421-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Lightweight metallic cellular materials can be used in the construction of composite plates, shells and tubes with high structural efficiency. Previous models for the mechanical performance of cellular materials have focused on their dependence on relative density, cell geometry and the properties of the solid material of which the cell faces and edges are composed. In this study, we consider the effect of the distribution of solid between the cell faces and edges on mechanical properties using finite element analysis of idealized 2D (hexagonal honeycomb) and 3D (closed-cell tetrakaidecahedral foam) cellular materials. The effects of the distribution of the solid on the stiffness and strength of these materials are presented and discussed. (C) 1998 Acta Metallurgica Inc.
引用
收藏
页码：2139 / 2150
页数：12
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