Acoustic emission monitoring of fracturing process of migmatite samples

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F15%3A00444507" target="_blank" >RIV/67985831:_____/15:00444507 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Acoustic emission monitoring of fracturing process of migmatite samples
Original language description
Migmatite from the Skalka region (Czech Republic) was chosen as the experimental rock material. It has macroscopically visible plane parallel structure (foliation). The foliation was caused mainly by biotite grains arrangement. The cylindrical samples ofmigmatite with subhorizontal, subvertical and oblique foliation were uniaxially loaded up to the failure. Network of 8 broad band sensors was employed for acoustic emission monitoring and ultrasonic sounding. A grid search method with anisotropic velocity model was used for AE hypocenters localization. The source types of successfully localized events were determined from the average first arrival amplitude. Structural anisotropy of tested rock material caused the anisotropy of its mechanical properties (peak strength, Young?s modulus) as well as a different way of fracturing process in dependence on the angle between axial stress and foliation plane. The combination of splitting, shearing and sliding was found to control the fracturin
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Innovations in Applied and Theoretical Rock Mechanics
ISBN
978-1-926872-25-4
ISSN
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e-ISSN
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Number of pages
12
Pages from-to
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Publisher name
Canadian Institute of Mining, Metallurgy and Petroleum
Place of publication
Montréal
Event location
Montréal
Event date
May 10, 2015
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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