STAGE-I COMPACTION OF CYLINDRICAL PARTICLES UNDER NONHYDROSTATIC LOADING

被引：25

作者：

AKISANYA, AR ^{[1
]}

COCKS, ACF ^{[1
]}

机构：

[1] UNIV CAMBRIDGE,DEPT ENGN,CAMBRIDGE CB2 1PZ,ENGLAND

来源：

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS | 1995年 / 43卷 / 04期

关键词：

D O I：

10.1016/0022-5096(94)00078-J

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Constitutive models are developed for stage I compaction of a two-dimensional array of cylindrical particles under general loading. Densification is assumed to occur by plastic deformation at particle contacts, and yield surfaces are constructed as functions of two state variables using slip-line field and finite element methods. The shape and size of the yield surface are found to depend upon the loading history and the relative density of the array. The effects of non-hydrostatic loading and material hardening upon the pressure-density response of the array of particles are examined by the finite element method. The numerical predictions of the pressure-density response are compared with experimental results for hydrostatic and closed-die compaction of plasticene cylinders.

引用

页码：605 / 636

页数：32