ANALYSIS OF THE FAILURE MECHANISM OF 3D PRINTED CEMENTITIOUS OBJECTS

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

ANALYSIS OF THE FAILURE MECHANISM OF 3D PRINTED CEMENTITIOUS OBJECTS

Original language description

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.

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

20102 - Construction engineering, Municipal and structural engineering

Project

<a href="/en/project/FW06010422" target="_blank" >FW06010422: Simulation and design of structures from digital concrete</a><br>

Continuities

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

Publication year

2025

Confidentiality

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

Article name in the collection

Proceedings of 25th International Multidisciplinary Scientific GeoConference SGEM 2025

ISBN

978-619-7603-87-3

ISSN

1314-2704

e-ISSN

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Number of pages

8

Pages from-to

253-260

Publisher name

STEF92 Technology Ltd.

Place of publication

Sofia

Event location

Albena

Event date

Jun 28, 2025

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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