ANALYSIS OF THE FAILURE MECHANISM OF 3D PRINTED CEMENTITIOUS OBJECTS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21610%2F25%3A00387389" target="_blank" >RIV/68407700:21610/25:00387389 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.5593/sgem2025/6.1/s25.36" target="_blank" >https://doi.org/10.5593/sgem2025/6.1/s25.36</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5593/sgem2025/6.1/s25.36" target="_blank" >10.5593/sgem2025/6.1/s25.36</a>

Jazyk výsledku

angličtina

Název v původním jazyce

ANALYSIS OF THE FAILURE MECHANISM OF 3D PRINTED CEMENTITIOUS OBJECTS

Popis výsledku v původním jazyce

3D concrete printing is an innovative approach to construction that enables faster, flexible and material-efficient building construction. A key factor for the broader adoption of this technology is understanding the mechanical properties of printed concrete constructions and validating them through experimental and numerical studies. This paper focuses on the determination of the mechanical properties of digital concrete with emphasis on the effect of production technology, testing and analysis of failure mechanisms of printed objects. Firstly, the basic mechanical properties of the cementitious material were analyzed. These parameters were then verified after extrusion into the molds and subsequently by drilling out of the printed structure. The results confirmed the consistency of the mixture used and enabled numerical analyses. A very important part was to investigate strength development in short times due to the use of a solidification accelerator, to develop software modules for the numerical modelling of the printing phase. The obtained parameters were used to design printed objects - cylinders (tubes) of different heights on which the resulting load capacity was tested. The main objective was to provide the basis for numerical analyses also in terms of the failure mechanism of the printed objects. Due to the brittle failure, it is a very sudden and rapid phenomenon. To verify numerical models and predict behavior, the Digital Image Correlation (DIC) method was applied, allowing deformation measurements and retrospective analysis of crack initiation. The results help to determine failure modes and validate computational models which lead to more reliable structural design.

Název v anglickém jazyce

ANALYSIS OF THE FAILURE MECHANISM OF 3D PRINTED CEMENTITIOUS OBJECTS

Popis výsledku anglicky

3D concrete printing is an innovative approach to construction that enables faster, flexible and material-efficient building construction. A key factor for the broader adoption of this technology is understanding the mechanical properties of printed concrete constructions and validating them through experimental and numerical studies. This paper focuses on the determination of the mechanical properties of digital concrete with emphasis on the effect of production technology, testing and analysis of failure mechanisms of printed objects. Firstly, the basic mechanical properties of the cementitious material were analyzed. These parameters were then verified after extrusion into the molds and subsequently by drilling out of the printed structure. The results confirmed the consistency of the mixture used and enabled numerical analyses. A very important part was to investigate strength development in short times due to the use of a solidification accelerator, to develop software modules for the numerical modelling of the printing phase. The obtained parameters were used to design printed objects - cylinders (tubes) of different heights on which the resulting load capacity was tested. The main objective was to provide the basis for numerical analyses also in terms of the failure mechanism of the printed objects. Due to the brittle failure, it is a very sudden and rapid phenomenon. To verify numerical models and predict behavior, the Digital Image Correlation (DIC) method was applied, allowing deformation measurements and retrospective analysis of crack initiation. The results help to determine failure modes and validate computational models which lead to more reliable structural design.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

<a href="/cs/project/FW06010422" target="_blank" >FW06010422: Simulace a navrhování konstrukcí z digitálního betonu</a><br>

Návaznosti

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of 25th International Multidisciplinary Scientific GeoConference SGEM 2025

ISBN

978-619-7603-87-3

ISSN

1314-2704

e-ISSN

—

Počet stran výsledku

8

Strana od-do

253-260

Název nakladatele

STEF92 Technology Ltd.

Místo vydání

Sofia

Místo konání akce

Albena

Datum konání akce

28. 6. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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