COMPACTION EQUATIONS FOR STRAIN-HARDENING POROUS MATERIALS

被引：19

作者：

KIM, KT ^{[1
]}

CARROLL, MM ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY,DEPT MECH ENGN,BERKELEY,CA 94720

来源：

INTERNATIONAL JOURNAL OF PLASTICITY | 1987年 / 3卷 / 01期

关键词：

BERYLLIUM AND ALLOYS - Hardening - MATHEMATICAL MODELS - POWDER METAL PRODUCTS - Alumina - TUNGSTEN AND ALLOYS;

D O I：

10.1016/0749-6419(87)90018-0

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Theoretical compaction equations for strain hardening porous materials are obtained by solving the problem of external pressurization of a hollow sphere of incompressible, rigid-plastic hardening material, for various forms of the hardening law. These hardening laws are chosen so that the integral expression for the pressure in the compaction problem can be evaluated in terms of elementary functions. This approach was adopted previously for a particular stress-strain response - the saturation hardening model of Voce and Palm - and gave some theoretical compaction equations, including the empirical equation of Konopicky and Shapiro and Kolthoff. The present work treats nonsaturation models for which the ultimate strength is unbounded.

引用

页码：63 / 73

页数：11

共 23 条

[1]

Bridgman P., 1952, STUDIES LARGE PLASTI

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