Study of fracture processes in sandstone subjected to four-point bending by means of 4D X-ray computed micro-tomography

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F22%3A00557121" target="_blank" >RIV/68145535:_____/22:00557121 - isvavai.cz</a>

Alternative codes found

RIV/68378297:_____/22:00557121

Result on the web

<a href="https://acta.imeko.org/index.php/acta-imeko/article/view/1220" target="_blank" >https://acta.imeko.org/index.php/acta-imeko/article/view/1220</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21014/acta_imeko.v11i2.1220" target="_blank" >10.21014/acta_imeko.v11i2.1220</a>

Result language

angličtina

Original language name

Study of fracture processes in sandstone subjected to four-point bending by means of 4D X-ray computed micro-tomography

Original language description

High-resolution X-ray computed micro-tomography (CT) is a powerful technique for studying the processes of crack propagation in non-homogenous quasi-brittle materials such as rocks. To obtain all the significant information about the deformation behaviour and fracture characteristics of the studied rocks, the use of a highly specialised loading device suitable for the integration into existing tomographic setups is crucial. Since no adequate commercial solution is currently available, a completely newly-designed loading device with a four-point bending setup and vertically-oriented scanned samples was used. This design of the loading procedure, coupled with the high stiffness of the loading frame, allows the loading process to be interrupted at any time and for CT scanning to be performed without the risk of the sudden destruction of the scanned sample.nThis article deals with the use of the 4D CT for the visualisation of crack initiation and propagation in clastic sedimentary rocks. Two types of quartz-rich sandstones of Czech provenance were used for tomographic observations during the four-point bending loading performed on chevron notched test specimens. It was found that the crack begins to propagate from the moment that ca. 80 % of the maximum loading force is applied.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

20701 - Environmental and geological engineering, geotechnics

Project

<a href="/en/project/EF16_019%2F0000766" target="_blank" >EF16_019/0000766: Engineering applications of microworld physics</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

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

Name of the periodical

Acta IMEKO

ISSN

2221-870X

e-ISSN

—

Volume of the periodical

11

Issue of the periodical within the volume

2

Country of publishing house

DE - GERMANY

Number of pages

7

Pages from-to

34

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85131601884