Fracturing of migmatite monitored by acoustic emission and ultrasonic sounding

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F19%3A00494576" target="_blank" >RIV/67985530:_____/19:00494576 - isvavai.cz</a>

Alternative codes found

RIV/67985831:_____/19:00494576 RIV/00216208:11310/19:10472519

Result on the web

<a href="https://link.springer.com/article/10.1007%2Fs00603-018-1590-2" target="_blank" >https://link.springer.com/article/10.1007%2Fs00603-018-1590-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00603-018-1590-2" target="_blank" >10.1007/s00603-018-1590-2</a>

Result language

angličtina

Original language name

Fracturing of migmatite monitored by acoustic emission and ultrasonic sounding

Original language description

Here, we present an experimental study of the fracturing of anisotropic migmatite with plane-parallel structure (foliation). Four specimens, with different dips of foliation, including subhorizontal (13 degrees), subvertical (86 degrees), and oblique (47 degrees, 67 degrees), were uniaxially loaded up to failure. Acoustic emission monitoring and ultrasonic sounding were applied for fracturing characterization. In case of subhorizontal and subvertical foliation, the tensile source type played an important role before reaching nucleation stress when shearing became dominant. The dominance of non-tension microcracking was characteristic for oblique foliation. The uniaxial loading of migmatite resulted in triaxial stress state regardless of the foliation dip. The minimum stress axis was in the subhorizontal direction of the foliation dip. The triaxial stress state caused the preferential orientation of induced shear and tension microcracks that had the same azimuthal orientation as the foliation. Preferential microcracking resulted in preferential orientation of the failure plane. Based on the anisotropic behavior of migmatite's characteristic mechanical properties, as well as its mechanism of failure that is typical for anisotropic rocks, the obtained conclusions may be generalized for other types of metamorphic anisotropic rocks with a plane-parallel structure.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10507 - Volcanology

Project

<a href="/en/project/GA16-03950S" target="_blank" >GA16-03950S: Solid body fracturing mode by shear-tensile source model: acoustic emission laboratory study</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Rock Mechanics and Rock Engineering

ISSN

0723-2632

e-ISSN

—

Volume of the periodical

52

Issue of the periodical within the volume

1

Country of publishing house

AT - AUSTRIA

Number of pages

13

Pages from-to

47-59

UT code for WoS article

000456673000004

EID of the result in the Scopus database

2-s2.0-85053439932