Time dependent modelling and simulation of digital concrete

Result code in 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>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Time dependent modelling and simulation of digital concrete

Original language description

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.

Czech name

—

Czech description

—

Type

O - Miscellaneous

CEP classification

—

OECD FORD branch

20101 - Civil 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

2024

Confidentiality

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