Khorshidi, Siros et Saadatnia, Zia. 2025. « Investigating the static and dynamic behavior of a novel 3D foldable-twistable metastructure: Mathematical, simulation, and experimental analysis ». Communication lors de la conférence : CSME-CFDSC-CSR 2025 International Congress (Montreal, QC, Canada, May 25-28, 2025).
Prévisualisation |
PDF
61 - Investigating the static and dynami.pdf - Version publiée Licence d'utilisation : Tous les droits réservés aux détenteurs du droit d'auteur. Télécharger (101kB) | Prévisualisation |
Résumé
Mechanical metamaterials or meta-structures, renowned for their exceptional mechanical properties, have gained considerable attention in recent years. These properties, which stem from the unique architecture of their structural composition rather than their intrinsic material composition, include programmable stiffness, negative Poisson’s ratio, and tunable compressibility. This study investigates the static characteristics and dynamic response of a novel 3D foldable-twistable meta-structure. With incorporating compression-torsion coupling effect, a unique geometry of the structure is designed. Using energy method and Lagrange principles, a comprehensive mechanics model for finding static and dynamic characteristics of the system is derived. To understand the structure's static behavior, the force-displacement curve, Poisson’s ratio, and Young’s modulus are analyzed to explore the stiffening and auxetic behavior as a function of various geometrical parameters. The study also examines the dynamic response of the developed structure including softening-hardening and vibration level difference versus frequency. In addition to mathematical modeling, finite element (FE) simulations, and experimental characterizations are performed to validate the findings. The results prove that the structure exhibit evidence of nonlinearity which can be utilized in various applications including energy absorption, vibration control, and energy harvesting.
| Type de document: | Communication (Communication) |
|---|---|
| Informations complémentaires: | Progress in Canadian Mechanical Engineering, Volume 8. Co-chairs: Lucas A. Hof, Giuseppe Di Labbio, Antoine Tahan, Marlène Sanjosé, Sébastien Lalonde and Nicole R. Demarquette. |
| Date de dépôt: | 18 déc. 2025 14:38 |
| Dernière modification: | 18 déc. 2025 14:38 |
| URI: | https://espace2.etsmtl.ca/id/eprint/32140 |
Actions (Authentification requise)
 |
Dernière vérification avant le dépôt |