Advances in modeling transport phenomena in material-extrusion additivemanufacturing: Coupling momentum, heat, and mass transfer

Das, A, McIlroy, Claire and Bortner, M (2020) Advances in modeling transport phenomena in material-extrusion additivemanufacturing: Coupling momentum, heat, and mass transfer. Progress in Additive Manufacturing . ISSN 2363-9512

Full content URL: https://doi.org/10.1007/s40964-020-00137-3

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Advances in modeling transport phenomena in material-extrusion additivemanufacturing: Coupling momentum, heat, and mass transfer
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Abstract

Material-extrusion (MatEx) additive manufacturing involves layer-by-layer assembly ofextruded material onto a printer bed and has found applications in rapid prototyping.Both material and machining limitations lead to poor mechanical properties of printedparts. Such problems may be addressed via an improved understanding of thecomplex transport processes and multiphysics associated with the MatEx process.Thereby, this review paper describes the current (last 5 years) state of the art modelingapproaches based on momentum, heat and mass transfer that are employed in aneffort to achieve this understanding. We describe how specific details regardingpolymer chain orientation, viscoelastic behavior and crystallization are often neglectedand demonstrate that there is a key need to couple the transport phenomena. Such acombined modeling approach can expand MatEx applicability to broader applicationspace, thus we present prospective avenues to provide more comprehensive modelingand therefore new insights into enhancing MatEx performance

Keywords:Material Extrusion, Flow deposition, Heat transfer, constitutive modles, flow-induced crystallization
Subjects:F Physical Sciences > F200 Materials Science
H Engineering > H141 Fluid Mechanics
H Engineering > H990 Engineering not elsewhere classified
G Mathematical and Computer Sciences > G150 Mathematical Modelling
G Mathematical and Computer Sciences > G120 Applied Mathematics
G Mathematical and Computer Sciences > G160 Engineering/Industrial Mathematics
Divisions:College of Science > School of Mathematics and Physics
ID Code:40814
Deposited On:16 Jun 2020 13:26

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