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Updated: May 27, 2025

Studying Large Amplitude Oscillatory Shear Response of Soft Materials
Published on: April 25, 2019
Strengthening by softening: Rigidity increase of a curved sheet from the nonlinear regime of deformation
Nino Quillent-Elinguel1, Thomas Barois1
1LOMA, Univ. Bordeaux, CNRS, UMR 5798, F-33400 Talence, France.
Abstract:
It is well-known that a thin sheet held in a rigid circular clamp has a larger flexural strength than when it is flat. Here, we report that the flexural strength of curved sheets is further increased with a softening of the clamping condition. This unexpected compliance effect relates to the geometrical properties of curvature-induced rigidity that we observe in controlled experiments and further analyze with numerical simulations. In addition, we identify another compliance effect in which opened curved sheets can be more resistant to bending than closed cylinders of same dimensions.
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