Regensburg 2022 – wissenschaftliches Programm
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BP: Fachverband Biologische Physik
BP 19: Cell Mechanics 2
BP 19.5: Vortrag
Mittwoch, 7. September 2022, 16:15–16:30, H16
Butterfly scale morphogenesis: Wrinkling on the micron scale — •Jan Totz1, Anthony McDougal2, and Mathias Kolle2 — 1Departments of Mathematics and Mechanical Engineering, Massachusetts Institute of Technology, Cambridge MA 02139, USA — 2Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge MA 02139, USA
Micron-scale surface modulations such as wrinkles or folds underly a number of modern engineering applications, such as photonic structures in photovoltaics and flexible metasurfaces. Controlled and precise fabrication of these modulations is a challenge for human manufacturing techniques. In stark contrast, biological systems robustly utilize morphological changes in their developmental program to create multi-germ bodies, hairs and scales on spatial scales which would be costly to replicate with human manufacturing. In this talk I will present recent measurements of in-vivo butterfly scale development exhibiting wrinkling. The observations are rationalized with a numerical finite element simulation and a parsimonious continuum mechanics model.