Elastic properties of model porous ceramics

被引：416

作者：

Roberts, AP ^{[1
]}

Garboczi, EJ

机构：

[1] NIST, Bldg Mat Div, Gaithersburg, MD 20899 USA

[2] Univ Queensland, Ctr Microscopy & Microanal, St Lucia, Qld 4072, Australia

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2000年 / 83卷 / 12期

关键词：

D O I：

10.1111/j.1151-2916.2000.tb01680.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The finite-element method (FEM) is used to study the influence of porosity and pore shape on the elastic properties of model porous ceramics. Young's modulus of each model is practically independent of the solid Poisson's ratio. At a sufficiently high porosity, Poisson's ratio of the porous models converges to a fixed value independent of the solid Poisson's ratio. Young's modulus of the models is in good agreement with experimental data. We provide simple formulas that can be used to predict the elastic properties of ceramics and allow the accurate interpretation of empirical property-porosity relations in terms of pore shape and structure.

引用

页码：3041 / 3048

页数：8

共 40 条

[1]

Aboudi J., 1991, MECH COMPOSITE MAT U, P35

[2] LONG-WAVELENGTH PROPAGATION IN COMPOSITE ELASTIC MEDIA .2. ELLIPSOIDAL INCLUSIONS [J].