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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Hulsen, Martien A.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2022Numerical Modeling of the Blend Morphology Evolution in Twin-Screw Extruderscitations
- 2022Constitutive framework for rheologically complex interfaces with an application to elastoviscoplasticitycitations
- 2021Numerical simulations of the polydisperse droplet size distribution of disperse blends in complex flowcitations
- 2020Numerical analysis of the crystallization kinetics in SLScitations
- 2020On the validity of 2D analysis of non-isothermal sintering in SLScitations
- 2019Simulation of bubble growth during the foaming process and mechanics of the solid foamcitations
- 2018Temperature-dependent sintering of two viscous particlescitations
- 2017Sintering of two viscoelastic particles: a computational approachcitations
- 2016Predicting the fountain flow instability
- 2006On the streamfunction-vorticity formulation in sliding bi-period frames : application to bulk behavior for polymer blendscitations
Places of action
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article
Numerical analysis of the crystallization kinetics in SLS
Abstract
In the selective laser sintering of polymers, the most widely used powders are based on polyamide 12 (PA12), which is a semi-crystalline polymer. Because the mechanical properties of the printed parts depend largely on the microstructure, knowledge on the crystalline architecture is important. We developed a numerical model based on the finite element method to solve the flow, temperature and crystallization kinetics of PA12 powder during sintering using two different geometries. Our results show that the temperature plays a crucial role in the crystallization kinetics and that simplified 0D calculations can be used to study the crystallization kinetics if the temperature behavior in time at a certain location is known. With our choice of initial and boundary conditions, we found primarily crystals of the α′-phase.