CONSTITUTIVE EQUATION FOR DYNAMIC COMPACTION OF DUCTILE POROUS MATERIALS

被引：452

作者：

HERRMANN, W

机构：

[1] Sandia Laboratories, Albuquerque

来源：

JOURNAL OF APPLIED PHYSICS | 1969年 / 40卷 / 06期

关键词：

D O I：

10.1063/1.1658021

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A simple phenomenological constitutive equation for porous materials is proposed, which allows a detailed description of irreversible compaction behavior at low pressures and reduces to the correct Hugoniot description at high pressures. The theory is compared to some existing data on Hugoniots of porous aluminum and iron, and fairly simple functional forms of the compaction relation are found to be adequate to fit the data. The constitutive relation is suitable for use with finite difference methods of solution of the one- and two-dimensional equations of motion governing stress wave propagation. Examples of such solutions in one dimension are given to illustrate some of the features of the theory. © 1969 The American Institute of Physics.

引用

页码：2490 / &