Mechanical properties and structural characteristics of plastically deformed peridotites

Abstract

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.

Original language	English
Pages (from-to)	152-156
Number of pages	5
Journal	Physical Mesomechanics
Volume	17
Issue number	2
DOIs	https://doi.org/10.1134/S1029959914020076
Publication status	Published - 1 Jan 2014

Keywords

cracking
dilatancy
mechanical properties
peridotites
petrography
stresses

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Surfaces and Interfaces

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title = "Mechanical properties and structural characteristics of plastically deformed peridotites",

abstract = "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.",

keywords = "cracking, dilatancy, mechanical properties, peridotites, petrography, stresses",

author = "Kulkov, {S. N.} and Suvorov, {V. D.} and Pokhilenko, {L. N.} and Stefanov, {Yu P.} and Buyakova, {S. P.} and Kulkov, {A. S.} and Chernyshov, {A. I.}",

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language = "English",

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T1 - Mechanical properties and structural characteristics of plastically deformed peridotites

AU - Kulkov, S. N.

AU - Suvorov, V. D.

AU - Pokhilenko, L. N.

AU - Stefanov, Yu P.

AU - Buyakova, S. P.

AU - Kulkov, A. S.

AU - Chernyshov, A. I.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - 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.

AB - 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.

KW - cracking

KW - dilatancy

KW - mechanical properties

KW - peridotites

KW - petrography

KW - stresses

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