| Titre : |
The influence of length and curvature : Calculation of the long-term behavior of injection molded long-fiber-reinforced thermoplastic components by integrative simulation |
| Type de document : |
texte imprimé |
| Auteurs : |
Maiko Ersch, Auteur ; Christian Hopmann, Auteur |
| Année de publication : |
2017 |
| Article en page(s) : |
p. 34-38 |
| Langues : |
Anglais (eng) |
| Catégories : |
Calcul
Essais dynamiques
Flexion trois points
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
Technical components are usually designed to be used for several years. In case of thermoplastic components, the creep and relaxation behavior must also be taken into account over this period of time. This has not yet been solved for injection molded long-fiber-reinforced thermoplastics. In order to be able to simulate the long-term behavior for this material class, the IKV has developed an integrative calculation method. |
| Note de contenu : |
- The fiber length influences the long-term behavior
- Non-linear viscoelastic material model based on pseudo grains
- Influence of fiber curvature on long-term behavior
- Integrative simulation as the key to success
- FIGURES : 1. The internal microstructure can be well described by measuring fiber orientation and fiber length distribution - 2. The fiber length (LFT : long fiber reinforcement : SFT : short fiber reinforcement) has a great influence on the long-term behavior - 3. The effort-oriented calibration procedure enables a good representation of the time-dependent mechanical behavior of the matrix component - 4. The pronounced fiber curvature in LFT components must be taken into account in the material model - 5. If the curvature reduction function is adapted to the processing, the material behavior can reflect reality well - 6. Successful validation of the material model on the model component. For this purpose, a 3-point flexural relaxation test was performed |
| En ligne : |
https://drive.google.com/file/d/1bL0xWUEg4OmIXeCn32fkOQFsFanAukBy/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29679 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 107, N° 12 (12/2017) . - p. 34-38
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