| Titre : |
Model the media influence on plastics faster and easier : Design of plastic components |
| Type de document : |
texte imprimé |
| Auteurs : |
Felix Melzer, Auteur ; Christian Hopmann, Auteur ; Rainer Dahlmann, Auteur |
| Année de publication : |
2023 |
| Article en page(s) : |
p. 94-96 |
| Langues : |
Anglais (eng) |
| Catégories : |
Caractérisation
Etalonnage
Fluage
Matières plastiques
Polycarbonates
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
Plastic components are often exposed to different media while in use. This can lead to a massive reduction of the mechanical properties. Previously, the investigation of these changes in mechanical properties via creep curves is associated with a high demand of time. In a recent research project at the IKV, a method was developed which helps to generate creep curves faster and with less testing effort. |
| Note de contenu : |
- Optimized calibration of the material model
- Creeping of pc under influence of water
- Testing is possible also outside the medium
- Modelled and measured creep curves correspond well
- Fig. 1 : Schematic representation of the approach used for creep curve modelling : The time-temperature shift allows master curves to be generated. These can be used to extrapolate material behavior over the long term
- Fig. 2 : Elastic modulus of PC in water depending on temperature and strain rate: Higher temperatures lead to a reduced Young‘s modulus. It increases with increasing strain rate
- Fig. 3 : Shift of the sub curves and the fit of the corresponding master curve
- Fig. 4 : Comparison between modelled and measured creep curves of PC at a temperature of 60 °C and three different loads: The measured and modelled values agree well |
| En ligne : |
https://drive.google.com/file/d/1DSwINkS4Nei1SOq894zfvjKBMUT3bN27/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40566 |
in PLASTICS INSIGHTS > Vol. 113, N° 8 (2023) . - p. 94-96
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