| Issue |
EPJ Web Conf.
Volume 340, 2025
Powders & Grains 2025 – 10th International Conference on Micromechanics on Granular Media
|
|
|---|---|---|
| Article Number | 10005 | |
| Number of page(s) | 4 | |
| Section | Experimental Methods for Granular Mechanics | |
| DOI | https://doi.org/10.1051/epjconf/202534010005 | |
| Published online | 01 December 2025 | |
https://doi.org/10.1051/epjconf/202534010005
Bursting cylindrical sand balloons
1 UAM-Azcapotzalco, Av. San Pablo 420, 02128 Azcapotzalco CDMX, México
2 ESIME Azcapotzalco, Instituto Politécnico Nacional, Av. de las Granjas 682, 02250 Azcapotzalco CDMX, México
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 1 December 2025
Abstract
We study experimentally the mechanical response of dry, cohesionless granular masses to the sudden bursts of cylindrical rubber balloons that contains Ottawa sand, at the very early instants of such an event. Due to the compression imposed by the balloon, the rupture generates a fast radial expansion of the sand front that depends on the initial radius Ro, the initial pressure p imposed by the balloon and the effective modulus of compression, Ke. The hydrostatic compression approximation allows us the theoretical study of this problem in the context of the linear elasticity theory. We found that, at the middle part of the cylindrical balloon, i.e., far from its lower and upper edges, a linear decompression wave, which induces the radial expansion of the sand front that, also, evolves linearly with time.
© The Authors, published by EDP Sciences, 2025
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