- Catégorie Article technique
- Évènement lié Congrès : Congrès SIMULATION - 18 et 19 mars 2015
- Édition SIA
- Date 18/03/2015
- Auteur A. Hatt - Faurecia
- Langue Anglais
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Format Fichier PDF (1.41 Mo)
(livraison exclusivement par téléchargement) - Nombre de pages 7
- Code R-2015-02-10
- Prix Gratuit
Process effects of the injection molding have an high impact on the product performance for short fibers reinforced thermoplastics materials. To predict product performance, a coupling with the process simulation and advanced anisotropic material models is required.
Faurecia has developed a methodology to integrate anisotropic effects of the fiber orientation with LS-DYNA explicit for crash simulations.
A specific anisotropic characterization is performed to fill micro / macro homogenization models and exported to LS-DYNA composite orthotropic elastoviscoplastic properties for different fiber orientation configurations. A specific mapping tool will orient elements and affect corresponding orthotropic material models versus fiber orientation.
Correlations are performed at different levels:
• Coupons
• Reference parts (beams)
• Seat frames
The level of correlation is improved versus isotropic material models with a similar computation time.