3D Modeling of the Mechanical Behavior of Ceramics with Pores of Different Size

被引：1

作者：

Smolin, Alexey Yu. ^{[1
,2
]}

Eremina, Galina M. ^{[2
]}

Konovalenko, Igor S. ^{[1
]}

Psakhie, Sergey G. ^{[3
,4
]}

机构：

[1] Inst Strength Phys & Mat Sci SB RAS, Tomsk 634055, Russia

[2] Natl Res Tomsk State Univ, Tomsk 634050, Russia

[3] Natl Res Tomsk Polytechn Univ, Inst High Technol Phys, Tomsk 634050, Russia

[4] Skolkovo Inst Sci & Technol, Skolkovo 143025, Russia

来源：

INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS OF MULTILEVEL SYSTEMS 2014 | 2014年 / 1623卷

关键词：

porous ceramics; mechanical properties; modeling; movable cellular automata; DEFORMATION; SIMULATION; FRACTURE; MEDIA;

D O I：

10.1063/1.4899014

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Movable cellular automaton method was used for simulating uniaxial compression of 3D porous ceramic samples. Pores were considered explicitly by removing randomly selected automata from the original FCC packing. Distribution of pores in space, their size and the total fraction were varied. It is shown that the relation between mechanical properties of the material and its porosity significantly depends on the pore size. Thus, value of the elastic modulus of the samples with large pores is greater than that of the samples with small pores by average value of 3%-16%. Strength value of the samples with large pores is less than that of the samples with small pores by average value of 12% up to the porosity of 0.55, and then becomes to be greater. When the samples contain small and large pores there is a maximum of mechanical properties at ratio of volumes of large and small pores of about 0.75.

引用

页码：591 / 594

页数：4

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