Modeling time-dependent anisotropy in MEX component-scale process simulation

Modeling time-dependent anisotropy in MEX component-scale process simulation

DI NARDO Mario Emanuele, FRÖLICH Felix, KÄRGER Luise, CARLONE Pierpaolo

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Abstract. In this paper, a numerical method is proposed to consider the transient anisotropic orientation state of a material extruded (MEX) part during a macroscale process simulation. To enhance computational efficiency, multiple filament strands are considered within single finite elements. The model is constructed around the utilization of 4th order orientation tensors, obtained by combining the information of the nozzle toolpath and the mesh elements in accordance with the process time. This provides a dynamic mapping of the anisotropic material orientation state within each element, in real-time to the process trajectory. Through the integration of time-dependent orientation tensors, this research provides deeper insights into filaments alignment evolution during the MEX process. This advancement not only enhances predictive capabilities in process simulation but also streamlines computational demands.

Keywords
Additive Manufacturing, FFF, Process Simulation, FEM, Filament Orientation, Material Anisotropy, Homogenization

Published online 4/24/2024, 10 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: DI NARDO Mario Emanuele, FRÖLICH Felix, KÄRGER Luise, CARLONE Pierpaolo, Modeling time-dependent anisotropy in MEX component-scale process simulation, Materials Research Proceedings, Vol. 41, pp 603-612, 2024

DOI: https://doi.org/10.21741/9781644903131-67

The article was published as article 67 of the book Material Forming

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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