Growth of a viscoplastic blister underneath an elastic sheet

Autor:	Torstein Sæter, Olivier Galland, Blandine Feneuil, Håvard J. Haugen, Andreas Carlson
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	Physics::Fluid Dynamics Mechanics of Materials Mechanical Engineering Applied Mathematics Fluid Dynamics (physics.flu-dyn) FOS: Physical sciences Physics - Fluid Dynamics Condensed Matter Physics Astrophysics::Galaxy Astrophysics Physics::Geophysics
ISSN:	0022-1120
Popis:	Inspired by the formation of geological structures as earth's crust deforms by magmatic intrusions, we investigate the elastohydrodynamic growth of a viscoplastic blister under an elastic sheet. By combining experiments, scaling analysis and numerical simulations we reveal a new regime for the growth of the blister's height $\sim t^{5/9}$ and radius $\sim t^{2/9}$. A plug like flow inside the blister dictates its dynamics, whereas the blister takes a quasi-static self-similar shape given by a balance in the pressure gradient induced by bending of the elastic sheet and the fluid's yield stress. 4 pages, 3 figures
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cac75e24138946a9bbc71b4ea27703f9 http://arxiv.org/abs/2203.04193 Zobrazit plný text záznamu