EFFECTIVE ELASTIC-MODULI OF POROUS SOLIDS

被引：217

作者：

RAMAKRISHNAN, N ^{[1
]}

ARUNACHALAM, VS ^{[1
]}

机构：

[1] MINIST DEF, NEW DELHI 110011, INDIA

来源：

JOURNAL OF MATERIALS SCIENCE | 1990年 / 25卷 / 09期

关键词：

15;

D O I：

10.1007/BF00582462

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The principles of continuum mechanics can be extended to porous solids only if the effective moduli are known. Although the effective bulk modulus has already been determined by approximating the geometry of a porous solid to be a hollow sphere, bounds could only be established for the other moduli. This problem of indeterminacy of the moduli is solved in this study using a particular model from the variation of the effective Poisson's ratio. In addition to this, the results are extended for the hollow sphere to real geometry by introducing a porositydependent factor. These results are compared with experimental data and the agreement is found to be good. As the effective Poisson's ratio cannot be determined accurately using experiments, the derived equation is verified using finite element analysis. © 1990 Chapman and Hall Ltd.

引用

页码：3930 / 3937

页数：8

共 15 条

[1] ON ELASTIC MODULI OF SOME HETEROGENEOUS MATERIALS [J].