Particle finite element simulation of extrusion processes of fresh concrete during 3D-concrete-printing
Publikation: Beitrag in Buch/Konferenzbericht/Sammelband/Gutachten › Beitrag in Konferenzband › Beigetragen › Begutachtung
Beitragende
Abstract
In this work, a numerical model based on the Particle Finite Element Method (PFEM) for the simulation of extrusion-based additive manufacturing of fresh concrete is presented. The balance of momentum and mass are solved with a mixed velocity-pressure formulation in an updated Lagrangian framework. The constitutive law is based on a Bingham model, that is approximated by a Perzyna formulation in order to account for the elastic regime before yielding, which is relevant for the analysis of printed material at rest. The channel flow test, a numerical benchmark for the flow of fresh concrete, is used to validate the model. Finally, 2D examples of extrusion-based additive manufacturing processes of fresh concrete are discussed.
Details
Originalsprache | Englisch |
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Titel | 2nd International Conference on Simulation for Additive Manufacturing, Sim-AM 2019 |
Redakteure/-innen | Ferdinando Auricchio, E. Rank, P. Steinmann, S. Kollmannsberger, Simone Morganti |
Herausgeber (Verlag) | International Center for Numerical Methods in Engineering |
Seiten | 428-439 |
Seitenumfang | 12 |
ISBN (elektronisch) | 9788494919480 |
Publikationsstatus | Veröffentlicht - 2019 |
Peer-Review-Status | Ja |
Publikationsreihe
Reihe | International Conference on Simulation for Additive Manufacturing |
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Konferenz
Titel | 2nd International Conference on Simulation for Additive Manufacturing, Sim-AM 2019 |
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Dauer | 11 - 13 September 2019 |
Stadt | Pavia |
Land | Italien |
Schlagworte
ASJC Scopus Sachgebiete
Schlagwörter
- Additive Manufacturing, Bingham Model, Concrete Rheology, Fluid Dynamics, Particle Finite Element Method, Perzyna Formulation