Instrumentation of four-point bending test during 4D computed tomography

Kód výsledku v IS VaVaI

RIV/68378297:_____/18:00495160 - isvavai.cz

Nalezeny alternativní kódy

RIV/68145535:_____/18:00495160

Výsledek na webu

https://ojs.cvut.cz/ojs/index.php/APP/article/view/5080/4794

DOI - Digital Object Identifier

10.14311/APP.2018.18.0020

Jazyk výsledku

angličtina

Název v původním jazyce

Instrumentation of four-point bending test during 4D computed tomography

Popis výsledku v původním jazyce

High-resolution time-lapse micro-focus X-ray computed tomography is an effective method for investigation of deformation processes on volumetric basis including fracture propagation characteristics of non-homogeneous materials subjected to mechanical loading. This experimental method requires implementation of specifically designed loading devices to X-ray imaging setups. In case of bending tests, our background research showed that no commercial solution allowing for reliable investigation of so called fracture process zone in quasi-brittle materials is currently available. Thus, this paper is focused on description of recently developed in-situ four-point bending loading device and its instrumentation for testing of quasi-brittle materials. Proof of concept together with the pilot experiments were successfully performed in a CT scanner TORATOM. Based on results of the pilot experiments, we demonstrate that crack development and propagation in a quasi-brittle material can be successfully observed in 3D using high resolution 4D micro-CT under loading.

Název v anglickém jazyce

Instrumentation of four-point bending test during 4D computed tomography

Popis výsledku anglicky

High-resolution time-lapse micro-focus X-ray computed tomography is an effective method for investigation of deformation processes on volumetric basis including fracture propagation characteristics of non-homogeneous materials subjected to mechanical loading. This experimental method requires implementation of specifically designed loading devices to X-ray imaging setups. In case of bending tests, our background research showed that no commercial solution allowing for reliable investigation of so called fracture process zone in quasi-brittle materials is currently available. Thus, this paper is focused on description of recently developed in-situ four-point bending loading device and its instrumentation for testing of quasi-brittle materials. Proof of concept together with the pilot experiments were successfully performed in a CT scanner TORATOM. Based on results of the pilot experiments, we demonstrate that crack development and propagation in a quasi-brittle material can be successfully observed in 3D using high resolution 4D micro-CT under loading.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

EF16_019/0000766: Inženýrské aplikace fyziky mikrosvěta

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Acta Polytechnica CTU Proceedings

ISBN

978-80-01-06474-0

ISSN

2336-5382

e-ISSN

—

Počet stran výsledku

4

Strana od-do

20-23

Název nakladatele

Czech Technical University in Prague

Místo vydání

Prague

Místo konání akce

Traunkirchen

Datum konání akce

17. 5. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000454320800005