| Titre : |
Modeling short-range interactions in concentrated newtonian fiber bundle suspensions |
| Type de document : |
texte imprimé |
| Auteurs : |
N. Meyer, Auteur ; Andrew N. Hrymak, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 255-263 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Composés de moulage en feuille
Composites à fibres discontinues
Dispersions et suspensions
Simulation, Méthode de
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
Sheet Molding Compounds (SMC) offer a cost efficient way to enhance mechanical properties of a polymer with long discontinuous fibers, while maintaining formability to integrate functions, such as ribs, beads or other structural reinforcements. During SMC manufacturing, fibers remain often in a bundled configuration and the resulting fiber architecture determines part properties. Accurate prediction of this architecture by simulation of flow under consideration of the transient rheology and transient fiber orientations can speed up the development process. In particular, the interaction of bundles is of significance to predict molding pressures correctly in a direct simulation approach, which resolves individual fiber bundles. Thus, this work investigates the tangential short-range lubrication forces between fiber bundles with analytical and numerical techniques. A relation between the effective sheared gap between bundles and the bundle separation distance at the contact point is found and compared to experimental results from literature. The result is implemented in an ABAQUS contact subroutine to incorporate short-range interactions in a direct bundle simulation framework. |
| Note de contenu : |
- INTRODUCTION : Long-range interactions - Short-range interactions
- ANALYTICAL CONSIDERATIONS ON THE SHEARED GAP
- PARAMETRIC STUDY : Model results
- APPLICATION TO DIRECT BUNDLE SIMULATION
- Table 1 : Simulation parameters |
| DOI : |
https://doi.org/10.1515/ipp-2020-4051 |
| En ligne : |
https://drive.google.com/file/d/1B2Omn_i8VU9uuP9x82jzggo2bEz1989n/view?usp=shari [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36368 |
in INTERNATIONAL POLYMER PROCESSING > Vol. 36, N° 3 (2021) . - p. 255-263
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