Mechanical Properties and Structural Characteristics of Plastically Deformed Peridotites

被引：1

作者：

Kulkov, S. N. ^{[1
,2
,3
]}

Suvorov, V. D. ^{[4
]}

Pokhilenko, L. N. ^{[5
]}

Stefanov, Yu P. ^{[1
,4
]}

Buyakova, S. P. ^{[1
,2
,3
]}

Kulkov, A. S. ^{[2
]}

Chernyshov, A. I. ^{[2
]}

机构：

[1] Russian Acad Sci, Siberian Branch, Inst Strength Phys & Mat Sci, Tomsk 634021, Russia

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

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

[4] Russian Acad Sci, Siberian Branch, Trofimuk Inst Petr Geol & Geophys, Novosibirsk 630090, Russia

[5] Russian Acad Sci, Siberian Branch, VS Sobolev Inst Geol & Mineral, Novosibirsk 630090, Russia

来源：

PHYSICAL MESOMECHANICS | 2014年 / 17卷 / 02期

关键词：

peridotites; mechanical properties; petrography; stresses; dilatancy; cracking;

D O I：

10.1134/S1029959914020076

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The paper reports on experimental study of peridotites with different average grain sizes. It is shown that coarse-crystalline peridotite undergoes multiple bulk fracture along all large fragments, whereas fracture of fine-crystalline peridotite is localized in the centre and develops in a direction close to the compression axis with the only slight deflection toward maximum tangential stresses in the upper and lower parts in which the strain localization zone is bifurcated. It is found that by the onset of fracture, the lateral to axial strain ratio for the coarse- and fine-crystalline specimens is 1.36 and 0.76, respectively.

引用

页码：152 / 156

页数：5

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