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<p>This study presents a comprehensive modeling and numerical simulation of the fused deposition process (FDM), emphasizing the intricate interplay between printing parameters, and the underlying physical mechanisms. We thoroughly analyse the temperature-driven crystallization kinetics at the microstructural scale to understand how intra- and inter-layers depositions, temperature and crystallization dynamics, influence the morphological distribution of the induced nuclei. In particular, the study highlights the cooling dynamics impact on key parameters such as the relative degree of crystallinity, nucleation density, crystal growth rate, and the final spherulite size distribution. The results reveal the effect of intra- and inter-layer depositions, including the time interval between successive layers on the enhancement of relative crystallinity and the spatial distribution of diffused nuclei.</p>

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Simulation of thermally induced crystallization kinetics during fused deposition modeling of thermoplastics: competing effects of interlayer and intralayer filament deposition

  • 期刊论文

  • 发表日期：

    2025年10月21日

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  • Chihabeddine Khalil,
  • Anass Ben ayad,
  • Rabie El otmani,
  • M’hamed Boutaous,
  • Khalid Kandoussi

摘要

This study presents a comprehensive modeling and numerical simulation of the fused deposition process (FDM), emphasizing the intricate interplay between printing parameters, and the underlying physical mechanisms. We thoroughly analyse the temperature-driven crystallization kinetics at the microstructural scale to understand how intra- and inter-layers depositions, temperature and crystallization dynamics, influence the morphological distribution of the induced nuclei. In particular, the study highlights the cooling dynamics impact on key parameters such as the relative degree of crystallinity, nucleation density, crystal growth rate, and the final spherulite size distribution. The results reveal the effect of intra- and inter-layer depositions, including the time interval between successive layers on the enhancement of relative crystallinity and the spatial distribution of diffused nuclei.