Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session F29: Morphing Matter I
8:00 AM–11:00 AM,
Tuesday, March 5, 2024
Room: 101J
Sponsoring
Unit:
DSOFT
Chair: PT Brun, Princeton University
Abstract: F29.00009 : Pneumatic Gaussian cells
10:00 AM–10:12 AM
Presenter:
Tian Gao
(Physique et Mécanique des Milieux Hétérogènes, ESPCI)
Authors:
Tian Gao
(Physique et Mécanique des Milieux Hétérogènes, ESPCI)
José Bico
(Physique et Mecanique des Milieux Hetero)
Benoit Roman
(Physique et Mecanique des Milieux Heterogenes)
Here, we present and rationalize a novel and versatile gaussian morphing approach inspired by pneumatic actuation in monocotyledon plant leaves (bulliform cells). Our method relies on two pieces of airtight fabric separated by a network of thin walls that define pneumatic Gaussian cells. Both in-plane contraction and angular deflection of the panels can be programmed simultaneously through the cross section of the walls and the width of the cell. In addition, the stiffness of the structure is proportional to the applied pressure, which paves the way for the development of large-scale objects. These surfaces with controlled stiffness and fast actuation are manufactured using consumer-grade materials and constitutes an important milestone towards large-scale shape-morphing robotics applications.
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