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Title: ANALYSIS OF THE FAILURE MECHANISM OF 3DPC OBJECTS

Year

2025

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353

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Title

ANALYSIS OF THE FAILURE MECHANISM OF 3DPC OBJECTS

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Authors

Adam Cítek; Milan Holý; David Cítek; Petr Sejkot

DOI

10.5593/sgem2025/6.1/s25.36

DOI Issue

10.5593/sgem2025/6.1

ISSN

1314-2704

ISBN

978-619-7603-87-3

Language

English

Volume

Issue

6.1

Editor

• Prof. Dr. hab. oec. Baiba Rivza, LATVIA• Prof. DSc. Ildiko Tulbure, GERMANY• Prof. DSc. Oleksandr Trofymchuk, UKRAINE

Scientific Area

Green Building Materials and Eco-Technologies

Abstract/ Foreword

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.

References (click to open)

[1] Metcherine, V., Dressler, I., Empelmann, M., Gehlen, Ch., Glock, Ch., Kuhn, A., Lanswer, J.P., Lowke, D., Muller, S., Neef, T., Nerella, V.N., Stephan, D. Digital concrete construction by means of additive processes - State of the art and research needs. In: Beton- und Stahlbetonbau, Vol. 116, Issue 11, Pages 881-900, Nov. 2021
[2] Dilawar, R.; Usman, M.; Ali, A.; Majit, U.; Faizan, M. et al. Inclusive characterization of 3D printed concrete (3DPC) in additive manufacturing: A detailed review. In: Construction and Building Materials 394 (29), 1–20, 2023
[3] Wolfs, R. J. M., BOS, F.P., SALET, T. A. M. Early age mechanical behaviour of 3D printed concrete: Numerical modelling and experimental testing. In: Cement and Concrete Research 106 (2018)
[4] Suchomel, J., V. Bureš. Sequentional on-site Printing of Building Structures, In: VSB - Technical University of Ostrava, Conference Architecture in Perspective, 2022-03-23

Acknowledgements (click to open)

This contribution is the result of the research supported by the grant project of Technology Agency of the Czech Republic - project No. FW06010422.

Type

conference

Url

https://doi.org/10.5593/sgem2025/6.1/s25.36

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ANALYSIS OF THE FAILURE MECHANISM OF 3DPC OBJECTS

Proceedings Тitle

Proceedings of 25th International Multidisciplinary Scientific GeoConference SGEM 2025, Volume 25, Issue 6.1

Note

25th International Multidisciplinary Scientific GeoConference SGEM 2025, Volume 25, Issue 6.1, 29 June - 6 July, 2025

Type

Proceedings Paper

Publisher

STEF92 Technology

Series

International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM

Organization

SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.

Pages

253-260

Date

29 June - 6 July, 2025

Online Source Type

website

Digital Source Type

10231

Keywords

cementitious material, 3D printing, material properties, failure, DIC