Bio-inspired and computer-supported design of modulated shape changes in polymer materials
- The Venus flytrap is a fascinating plant with a finely tuned mechanical bi-stable system, which can switch between mono- and bi-stability. Here, we combine geometrical design of compliant mechanics and the function of shape-memory polymers to enable switching between bi- and mono-stable states. Digital design and modelling using the Chained Beam Constraint Model forecasted two geometries, which were experimentally realized as structured films of cross-linked poly[ethylene-co-(vinyl acetate)] supported by digital manufacturing. Mechanical evaluation confirmed our predicted features. We demonstrated that a shape-memory effect could switch between bi- and mono-stability for the same construct, effectively imitating the Venus flytrap.
Verfasserangaben: | Johan Dag Valentin BäckemoORCiDGND, Yue LiuORCiDGND, Andreas LendleinORCiDGND |
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DOI: | https://doi.org/10.1557/s43579-021-00056-6 |
ISSN: | 2159-6867 |
Titel des übergeordneten Werks (Englisch): | MRS communications / a publication of the Materials Research Society |
Verlag: | Springer |
Verlagsort: | Berlin |
Publikationstyp: | Wissenschaftlicher Artikel |
Sprache: | Englisch |
Datum der Erstveröffentlichung: | 20.07.2021 |
Erscheinungsjahr: | 2021 |
Datum der Freischaltung: | 15.05.2023 |
Freies Schlagwort / Tag: | Additive manufacturing; Biomimetic; Modelling; Polymer; Shape memory |
Band: | 11 |
Ausgabe: | 4 |
Seitenanzahl: | 8 |
Erste Seite: | 462 |
Letzte Seite: | 469 |
Fördernde Institution: | Helmholtz Association of German Research CentersHelmholtz Association [VH-GS-503]; European Union's Horizon 2020 research and innovation program [824074] |
Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie |
DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften |
Peer Review: | Referiert |
Publikationsweg: | Open Access / Hybrid Open-Access |