Effect of pore concentration on localized plastic deformation in polycrystals

被引：1
|
作者：
Deryugin, YY [1 ]
Moiseenko, DD [1 ]
Lasko, GV [1 ]
机构：
[1] Russian Acad Sci, Inst Strength Phys & Mat Sci, Tomsk 634055, Russia
来源：
THEORETICAL AND APPLIED FRACTURE MECHANICS | 1998年 / 29卷 / 02期
关键词：
porous polycrystal; stress relaxation; stress concentration; simulation; localization deformation;
D O I：
10.1016/S0167-8442(98)00020-2
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Presented is a mesomechanical model that simulates the behavior of localized plastic deformation in polycrystal subjected to uniaxial load. Edge effect and pore concentration are analyzed. Predicted results between the mechanical properties of polycrystal and pore concentration are inconclusive as porosity alone could not explain the increase or decrease of polycrystal strength. The model applies to low pore concentration of less than 5% and hence coalescence of pores is also neglected. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：93 / 98
页数：6
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