Progress in visualization of crack propagation in rocks using X-ray computed tomography

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F18%3A00494949" target="_blank" >RIV/68145535:_____/18:00494949 - isvavai.cz</a>

Alternative codes found

RIV/68378297:_____/18:00494949

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Progress in visualization of crack propagation in rocks using X-ray computed tomography

Original language description

High-resolution X-ray computed micro-tomography (CT) represents an effective tool for studying the processes of initiation, development and spreading of cracks in non-homogeneous quasi-brittle materials (e.g. rocks or concrete). This article presents recent progress focused on visualization of crack propagation in different rocks, especially sandstones. The CT visualization of crack propagation took place in three successive stages. In the first stage, an inspection of the final crack on disc-shaped bodies with a height of about 5 mm, cut from unbroken cylindrical samples after the chevron bend (CB) test was carried out. During the second phase, three-point bending CB tests were performed using an in-house designed loading device, allowing a precise control of the loading process based on modified LinuxCNC software (running on a real-time kernel). X-ray radiography of a horizontally oriented sample was carried out during loading. For the third, so far the last phase of the research, a completely newly designed loading device with four-point bending setup and vertically oriented scanned sample was used. This new design of the loading experiment, coupled with the high stiffness of the loading frame, makes it possible to interrupt the loading process at any time and perform CT scanning without the risk of sudden destruction of scanned sample.

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

20301 - Mechanical engineering

Project

<a href="/en/project/LO1406" target="_blank" >LO1406: Institute of clean technologies for mining and utilization of raw materials for energy use -Sustainability program</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

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

Article name in the collection

Proceedings of the 39th West Japan Symposium on Rock Engineering

ISBN

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ISSN

0917-2580

e-ISSN

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Number of pages

4

Pages from-to

25-28

Publisher name

Nagasaki University

Place of publication

Nagasaki

Event location

Nagasaki

Event date

Sep 22, 2018

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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