Let's deflate that beach ball
Abstract
We investigate the relationship between pre-buckling and post-buckling states as a function of shell properties, within the deflation process of shells of an isotropic material. With an original and low-cost set-up that allows to measure simultaneously volume and pressure, elastic shells whose relative thicknesses span on a broad range are deflated until they buckle. We characterize the post-buckling state in the pressure-volume diagram, but also the relaxation toward this state. The main result is that before as well as after the buckling, the shells behave in a way compatible with predictions generated through thin shell assumption, and that this consistency persists for shells where the thickness reaches up to 0.3 the shell's midsurface radius.
Cite
@article{arxiv.1909.07130,
title = {Let's deflate that beach ball},
author = {Gwennou Coupier and Adel Djellouli and Catherine Quilliet},
journal= {arXiv preprint arXiv:1909.07130},
year = {2019}
}