Time dependent modelling and simulation of digital concrete

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28399269%3A_____%2F24%3AN0000009" target="_blank" >RIV/28399269:_____/24:N0000009 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Time dependent modelling and simulation of digital concrete

Popis výsledku v původním jazyce

3D concrete printing (3DCP) is an innovative construction technology with the potential to revolutionize the concrete industry. As the research and development of 3DCP accelerate, there is a growing need for suitable numerical tools for the simulation of the process. In response to this need, this paper presents an integrated approach, combining a time-dependent material model for hardening concrete with a finite element method (FEM) solver, capable of progressively activating finite elements along the printing trajectory. The numerical model for the material behavior is derived directly from the underlying hydration mechanism. The simulation of the additive manufacturing process is directly driven and controlled by the G-code data, which is normally used to drive the printing machine. The finite element numerical model is automatically generated using the G-code commands as individual finite element layers. Each finite element is activated according to the printing speed and its position along the printing path. Interface elements with timedependent material laws can be automatically introduced between the layers to simulate the influence of the reduced mechanical properties of the printing layer connection.The proposed solver is formulated to account for second-order effects to be able to simulate possible stability collapse during the printing process. To demonstrate the effectiveness of the proposed framework, an example simulating layer-by-layer construction of a real pilot house will be shown.

Název v anglickém jazyce

Time dependent modelling and simulation of digital concrete

Popis výsledku anglicky

3D concrete printing (3DCP) is an innovative construction technology with the potential to revolutionize the concrete industry. As the research and development of 3DCP accelerate, there is a growing need for suitable numerical tools for the simulation of the process. In response to this need, this paper presents an integrated approach, combining a time-dependent material model for hardening concrete with a finite element method (FEM) solver, capable of progressively activating finite elements along the printing trajectory. The numerical model for the material behavior is derived directly from the underlying hydration mechanism. The simulation of the additive manufacturing process is directly driven and controlled by the G-code data, which is normally used to drive the printing machine. The finite element numerical model is automatically generated using the G-code commands as individual finite element layers. Each finite element is activated according to the printing speed and its position along the printing path. Interface elements with timedependent material laws can be automatically introduced between the layers to simulate the influence of the reduced mechanical properties of the printing layer connection.The proposed solver is formulated to account for second-order effects to be able to simulate possible stability collapse during the printing process. To demonstrate the effectiveness of the proposed framework, an example simulating layer-by-layer construction of a real pilot house will be shown.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20101 - Civil 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

2024

Kód důvěrnosti údajů

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