Collings, William, Schwarz, Jackson, Bakis, Charles E., El-Sayegh, Zeinab et El-Gindy, Moustafa.
2025.
« Finite element modelling of a non-pneumatic tire's spoke ».
In Proceedings of the CSME-CFDSC-CSR 2025 International Congress (Montreal, QC, Canada, May 25-28, 2025)
Coll. « Progress in Canadian Mechanical Engineering », vol. 8.
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Résumé
In order to understand and design modern non-pneumatic tires (NPTs), it is important to characterize the stress-strain behaviour of the polyurethane rubber their spokes are often composed of. This study focuses on a particular under-studied type of NPT, a Michelin Tweel® 18x8.5N10 tire designed for use with golf and utility carts. Characterization of the polyurethane spoke material was done by calibrating three material models with an experimental stress-strain curve, and then validating the models with a simulated tensile test. Two different software packages, MCalibration and Pam-Crash, were used to calibrate a 3rd-order Ogden hyperelastic rubber model, and the resulting models had a high R2 fitness of 0.99 with respect to the experimental data up to 500% strain. However, both Ogden models underestimated the stress in the range of 0% to 70% strain, therefore the General Nonlinear Solid Foam material model was implemented instead in order to exactly predict the polyurethane’s stress-strain behaviour in the 0% to 70% strain range. This difference in accuracy over a specific range demonstrates the importance of considering a large number of material models in order to obtain the best performance in the desired range, rather than relying on fitness coefficients. The implementation of the General Nonlinear Solid Foam model for the polyurethane rubber will allow highly accurate modelling of the NPT spoke’s behaviour in future finite element modelling endeavours.
| Type de document: | Compte rendu de conférence |
|---|---|
| Éditeurs: | Éditeurs ORCID Hof, Lucas A. NON SPÉCIFIÉ Di Labbio, Giuseppe NON SPÉCIFIÉ Tahan, Antoine NON SPÉCIFIÉ Sanjosé, Marlène NON SPÉCIFIÉ Lalonde, Sébastien NON SPÉCIFIÉ Demarquette, Nicole R. NON SPÉCIFIÉ |
| Date de dépôt: | 18 déc. 2025 15:09 |
| Dernière modification: | 18 déc. 2025 15:09 |
| URI: | https://espace2.etsmtl.ca/id/eprint/32378 |
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