Post-buckling Dynamics of Spherical Shells
Soft Condensed Matter
2021-10-04 v2 Classical Physics
Fluid Dynamics
Abstract
We explore the intrinsic dynamics of spherical shells immersed in a fluid in the vicinity of their buckled state, through experiments and 3D axisymmetric simulations. The results are supported by a theoretical model that accurately describes the buckled shell as a two-variable-only oscillator. We quantify the effective "softening" of shells above the buckling threshold, as observed in recent experiments on interactions between encapsulated microbubbles and acoustic waves. The main dissipation mechanism in the neighboring fluid is also evidenced.
Cite
@article{arxiv.2104.06647,
title = {Post-buckling Dynamics of Spherical Shells},
author = {Marcel Mokbel and Adel Djellouli and Catherine Quilliet and Sebastian Aland and Gwennou Coupier},
journal= {arXiv preprint arXiv:2104.06647},
year = {2021}
}