Abstract
Prior literature employed a finite element based fully coupled algorithm that solved the flow/orientation coupling effects in extrusion deposition additive manufacturing, i.e., a key component for identifying the material properties of solidified deposited polymer composites. However, the complex iterative solution protocol reduces the computational capability of the algorithm. This paper simplifies the finite element based fully coupled algorithm by employing a scalar representation of the fourth order orientation tensor affected viscosity tensor. The revised code predicts similar fiber orientation results as compared to a related prior study. With the simplified fully coupled algorithm, effects of material deposition rate and fiber aspect ratio on a 2D planar large area extrusion deposition flow are explored, where the power law rheology model is employed for the flow simulation. Computed results show that an increased material deposition rate reduces the extrudate-swell ratio of the melt front and varies the local fiber orientation of the deposited bead especially near the flow region in contact with the substrate. Higher fiber aspect ratio enhances the principal fiber alignment of the extrusion and deposition flows, where the maximum local difference of the principal A 11 component is 23% with increasing fiber aspect ratio from 10 to 25.
Funding source: National Natural Science Foundation of China http://dx.doi.org/10.13039/501100001809
Award Identifier / Grant number: 52101381
Funding source: Fundamental Research Funds for the Central Universities of China
Award Identifier / Grant number: 3132021337
Acknowledgements
The author would like to thank the anonymous reviewers that provided insightful comments and valuable suggestions.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: This work was funded by the National Natural Science Foundation of China (Grant No. 52101381), the Fundamental Research Funds for the Central Universities of China (Grant No. 3132021337).
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Conflict of interest statement: The author declares no conflict of interest.
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Articles in the same Issue
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Articles in the same Issue
- Frontmatter
- Research Articles
- Process parameter optimization for Fused Filament Fabrication additive manufacturing of PLA/PHA biodegradable polymer blend
- Preparation and application of carbon black-filled rubber composite modified with a multi-functional silane coupling agent
- Non-isothermal viscoelastic melt spinning with stress-induced crystallization: numerical simulation and parametric analysis
- Effect of the amount of oxazoline compatibilizer on the mechanical properties of liquid crystalline polymer/polypropylene blends
- Tensile, rheological and morphological characterizations of multi-walled carbon nanotube/polypropylene composites prepared by microinjection and compression molding
- Modification of self-reinforced composites (SRCs) via film stacking process
- Study of distributive mixing in a journal bearing flow geometry
- Synthesis and characterization of wood flour modified by graphene oxide for reinforcement applications
- Antifouling improvement of a polyacrylonitrile membrane blended with an amphiphilic copolymer
- Exploring the applicability of a simplified fully coupled flow/orientation algorithm developed for polymer composites extrusion deposition additive manufacturing
- Understanding softening of amorphous materials for FFF applications
- News
- PPS News