From analytical methods to numerical simulations
| Autor: | Alexandre Pierre, Venkatesh Naidu Nerella, Narayanan Neithalath, Emmanuel Keita, N. Roussel, Viktor Mechtcherine, Sooraj A.O. Nair, Rjm Rob Wolfs, Arnaud Perrot |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Structure (mathematical logic)
Materials science 3D-printing Process (engineering) business.industry Additive manufacturing 3D printing Building and Construction Material requirements Toolbox Analytical modeling Numerical simulations Deposition (phase transition) General Materials Science Concrete technology Cementitious Layer (object-oriented design) business Process engineering |
| Zdroj: | Cement and Concrete Composites. 122 |
| ISSN: | 0958-9465 |
| Popis: | This paper compiles selected predictive analytical and numerical tools which can be used to model and understand the mechanisms of importance at different stages during and immediately after extrusion-based 3D printing of cementitious materials. The proposed toolbox covers different aspects of the process including mixing, material transportation, layer deposition, mechanical behavior of the fresh printed structure, and its early curing. Specifically, the paper provides basic analytical methods that should be helpful for an initial, first-order analysis of a given printing process. These methods deliver, in turn, a first estimation of some material requirements and process parameters. Limitations of these analytical methods are also discussed. Furthermore, the paper presents a review of advanced numerical tools that can be used to simulate the steps in the printing process accurately. It is shown that these tools can serve to describe complex behaviors, help in designing process parameters, or optimizing the rheological response, even though further developments are still needed to capture fully the attendant physical mechanisms. |
| Databáze: | OpenAIRE |
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