Plastic Deformation in Mesocomposite Materials under Dynamic Loading as Applied to Their Joining with Metals

被引：4

作者：

Bondar, M. P. ^{[1
]}

Dmitriev, A. I. ^{[2
,3
,4
]}

机构：

[1] Russian Acad Sci, Lavrentyev Inst Hydrodynam, Siberian Branch, Novosibirsk 630090, Russia

[2] Russian Acad Sci, Inst Strength Phys & Mat Sci, Siberian Branch, Tomsk 634055, Russia

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

[4] Natl Res Tomsk Polytech Univ, Tomsk 634050, Russia

来源：

PHYSICAL MESOMECHANICS | 2016年 / 19卷 / 04期

关键词：

high-rate loading; mesocomposite; nanoparticles; texture; simulation; rotational deformation mechanism; FRACTURE; LOCALIZATION; SIMULATION;

D O I：

10.1134/S1029959916040081

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The paper studies the effect of the amount and distribution pattern of nanoinclusions in a high-strength mesocomposite matrix on its plastic deformation under dynamic loading. The study is performed on mesocomposite specimens shaped as hollow thick-walled cylinders subjected to combined shear/compression loading with an explosive. It is found that homogeneous strain decreases with the growing volume fraction of nanoinclusions. The mechanical texture formed by the distribution of nanoinclusions in mesocomposite bars is shown to influence the deformation and cracking mechanisms. Additionally, the influence of structure is studied by computer simulation. The simulation has revealed that plastic deformation is rotational in the mesocomposite with chaotic structural distribution.

引用

页码：420 / 429

页数：10

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