Determination of an empirical relations between mode I fracture toughness using CB and SCB specimens and Brazilian tensile strength of rocks

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F23%3A00577557" target="_blank" >RIV/68145535:_____/23:00577557 - 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

Determination of an empirical relations between mode I fracture toughness using CB and SCB specimens and Brazilian tensile strength of rocks

Original language description

Fracture toughness (FT) expresses material resistance to crack propagation leading to its final macroscopic failure. Approximately 20 different laboratory methods are currently used for a mode I and mixed mode I/II FT rock testing. However, it is a well-known fact that, for the same rock, the mode I FT value varies when different specimen types are utilized. Moreover, the preparation of specimens for FT testing may be associated with difficulties in obtaining required notch dimensions. From this point of view, Brazilian tensile strength (BTS) represents an easily and quickly detectable parameter that can be applied for prediction of the mode I FT. In this contribution, the results of investigations of mutual empirical relationships between FT determined using CB and SCB tests, as well as among FT values obtained via these testing methods and BTS are presented. A total of 14 different rock types, mostly sandstones, were used for this research.n

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20701 - Environmental and geological engineering, geotechnics

Project

<a href="/en/project/GA23-05128S" target="_blank" >GA23-05128S: Influence of textural and structural features on failure of transversely isotropic rocks examined using 4D X-ray computed tomography</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Article name in the collection

Proceedings of the ISRM 15th International Congress on Rock Mechanics and Rock Engineering & 72nd Geomechanics Colloquium – Challenges in Rock Mechanics and Rock Engineering

ISBN

978-3-9503898-3-8

ISSN

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e-ISSN

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Number of pages

6

Pages from-to

2430-2435

Publisher name

Austrian Society for Geomechanics

Place of publication

Salzburg

Event location

Salzburg

Event date

Oct 9, 2023

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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