Fast continuous in-situ XCT of additively manufactured carbon fiber reinforced tensile test specimens

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F23%3A00572542" target="_blank" >RIV/68378297:_____/23:00572542 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.14311/APP.2023.42.0022" target="_blank" >https://doi.org/10.14311/APP.2023.42.0022</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/APP.2023.42.0022" target="_blank" >10.14311/APP.2023.42.0022</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fast continuous in-situ XCT of additively manufactured carbon fiber reinforced tensile test specimens

Popis výsledku v původním jazyce

The reinforcement of fused filament fabricated (FFF) components with continuous fibers allows for high versatility in the design of mechanical properties for a specific application’s needs. However, the bonding quality between continuous fibers and the FFF matrix material has high impact on the overall performance of the composite. In a recent study [1], additively manufactured (AM) continuous fiber reinforced tensile test specimens have been investigated regarding the effect of amount and material of the embedded continuous fibers on tensile strength and AM build quality. During these tensile tests, a sudden reduction in tensile stress, which most likely was not related to actual rupture of continuous fibers, was noticeable. Since X-ray computed tomography (XCT) scans were performed only prior to and after the tensile testing, a detailed investigation on the origin of these drops in tensile stress was not possible. Within this work, we will expand upon these findings and present results of fast on-the-fly in-situ investigations performed on continuous carbon fiber reinforced specimens of the same AM build. During these investigations, specimens are loaded under the same conditions while fast XCT scans, with a total scan time of 12 seconds each, were performed consecutively. The resulting three-dimensional image data reveals internal meso- and macro-structural changes over time/strain to find the cause of the aforementioned reduction in tensile stress.

Název v anglickém jazyce

Fast continuous in-situ XCT of additively manufactured carbon fiber reinforced tensile test specimens

Popis výsledku anglicky

The reinforcement of fused filament fabricated (FFF) components with continuous fibers allows for high versatility in the design of mechanical properties for a specific application’s needs. However, the bonding quality between continuous fibers and the FFF matrix material has high impact on the overall performance of the composite. In a recent study [1], additively manufactured (AM) continuous fiber reinforced tensile test specimens have been investigated regarding the effect of amount and material of the embedded continuous fibers on tensile strength and AM build quality. During these tensile tests, a sudden reduction in tensile stress, which most likely was not related to actual rupture of continuous fibers, was noticeable. Since X-ray computed tomography (XCT) scans were performed only prior to and after the tensile testing, a detailed investigation on the origin of these drops in tensile stress was not possible. Within this work, we will expand upon these findings and present results of fast on-the-fly in-situ investigations performed on continuous carbon fiber reinforced specimens of the same AM build. During these investigations, specimens are loaded under the same conditions while fast XCT scans, with a total scan time of 12 seconds each, were performed consecutively. The resulting three-dimensional image data reveals internal meso- and macro-structural changes over time/strain to find the cause of the aforementioned reduction in tensile stress.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

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

—

ISSN

2336-5382

e-ISSN

2336-5382

Počet stran výsledku

5

Strana od-do

22-26

Název nakladatele

Czech Technical University in Prague

Místo vydání

Prague

Místo konání akce

Telč

Datum konání akce

11. 6. 2023

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

001232626700005