Determination of the ultimate plastic capacity for powder materials based on the plastic flow model for porous solids. II. Influence of porosity and the stress-strain properties of the solid phase on the ultimate plastic capacity of a porous sintered material

被引：0

作者：

Shtern, MB ^{[1
]}

Dudunov, VD ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, Inst Problems Mat Sci, Kiev, Ukraine

来源：

POWDER METALLURGY AND METAL CERAMICS | 2000年 / 39卷 / 1-2期

关键词：

limit surface; loading surface; loading path; porosity; plasticity diagram; ductile fracture;

D O I：

10.1007/BF02677433

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：

A procedure for theoretical construction of the limiting surface for porous materials is described. The procedure requires the porosity. the stress-strain properties of the solid phase, and decohesion to be predefined. The limiting surface is defined for proportional loading paths. The obtained limiting states are also represented as plasticity, diagrams. A satisfactory correspondence of the theoretical results with experimental data is shown for a number of both ferrous and non-ferrous powder materials.

引用

页码：7 / 10

页数：4