Finite Element Modelling Of 3d Printing Concrete: A Parametric Study of Influencing Variables on Buildability of Wall Modules

Apsari, Auliagitta Kumala (2025) Finite Element Modelling Of 3d Printing Concrete: A Parametric Study of Influencing Variables on Buildability of Wall Modules. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

TPerkembangan beton cetak 3D (3DPC) terus mengalami kemajuan melalui inovasi dalam komposisi material dan parameter pencetakan untuk meningkatkan performanya. Namun, optimalisasi parameter dan desain aspek geometris pada 3DPC masih relatif belum banyak dieksplorasi. Penelitian eksperimental di bidang ini seringkali terkendala oleh kebutuhan peralatan pencetakan khusus, yang membatasi skalabilitas dan pengembangannya. Untuk mengatasi tantangan tersebut, pemodelan numerik muncul sebagai alternatif yang memungkinkan peneliti untuk mensimulasikan perilaku 3DPC menggunakan perangkat lunak komersial, dalam studi ini menggunakan paket perangkat lunak ATENA. Sebuah modul dinding dengan dimensi 2x3 meter digunakan sebagai bentuk dasar. Variasi parameter meliputi ukuran nosel, panjang lapisan infill, kecepatan pencetakan, dan ketebalan modul dinding. Variasi parameter tersebut menghasilkan total 28 model untuk mengamati pengaruh masing-masing parameter terhadap buildability. Selain menetapkan pendekatan pemodelan untuk elemen hingga 3DPC di ATENA dengan memanfaatkan konstitutif material modelyang dikembangkan dari penelitian sebelumnya, studi ini menekankan parameter-parameter yang memengaruhi selama proses pencetakan serta mengevaluasi keandalan desain. Dari seluruh hasil simulasi model, dapat disimpulkan bahwa kecepatan dan panjang lapisan infill berperan signifikan dalam meningkatkan buildability. Variasi ukuran nosel dan ketebalan dinding meningkatkan buildability hingga 7 lapisan tambahan, namun dengan mempertimbangkan efisiensi dan penggunaan material, variasi tersebut tidak direkomendasikan. Dengan mengembangkan kerangka pemodelan yang terstruktur, penelitian ini bertujuan untuk berkontribusi terhadap adopsi dan optimalisasi teknologi 3DPC dalam penerapan di dunia nyata.
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The advancement of 3D printed concrete (3DPC) continues to progress with innovations in material composition and printing parameters to enhance performance. However, the optimization of parameters and geometric aspects design in 3DPC remains relatively unexplored. Experimental research in this field is often constrained by the need for specialized printing equipment, limiting its scalability and development. To address these challenges, numerical modeling has emerged as an effective alternative, enabling researchers to simulate 3DPC behavior using commercial software, in this study is ATENA software package. A double-layered wall module with dimensions of 2x3 meter used as the based shape. The parameters variations including nozzle size, infill layer length, printing speed and wall module thickness. These various parametric results in total of 28 model variations to observe each parameter effects on buildability. Besides the established of a modelling approach for 3DPC finite element modeling in ATENA, utilizing the constitutive material model developed by previous research, this study emphasizes the influencing parameters during the printing process and evaluates the reliability of its structural design for practical implementation. It can be conclude from all the model simulation results that printing speed and infill layer length play a significant role in enhancing model buildability. The nozzle size and wall thickness variations seems has slightly improve up to 7 more layers, but considering the material usage and efficiency it was not recommend. By developing a structured modeling framework, this research seeks to contribute to the broader adoption and optimization of 3DPC in real-world applications.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	3DPC, Printed Concrete, Finite element modelling, Geometry aspects, 3DPC, Beton cetak, Pemodelan elemen hingga, aspek geometri
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method T Technology > TA Engineering (General). Civil engineering (General) > TA681 Concrete construction
Divisions:	Faculty of Civil Engineering and Planning > Civil Engineering > 22101-(S2) Master Thesis
Depositing User:	Auliagitta Kumala Apsari
Date Deposited:	30 Jul 2025 06:44
Last Modified:	30 Jul 2025 06:44
URI:	http://repository.its.ac.id/id/eprint/123229

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