Skip to Main content Skip to Navigation
Journal articles

Impact of a pressurised membrane: contact time

Abstract : Pressurised membranes are used in various situations involving humans (protections, sports, etc). In this context, impacts mechanics of membranes is critical since under or over inflated membranes may create injuries. The effect of inflation pressure on contact time is investigated on a model experiment using a spherical membrane. Both gas pressure and impact speed decrease contact time. Direct measurements of gas pressure and temperature variations indicate an adiabatic compression in strong interaction with the membrane. The contact time of an inflated membrane is described by three dimensionless numbers, (i) the relative inflationP, (ii) the presso-elactic number P E that considers the gas-membrane interaction and (iii) the presso-inertial number I P that scales membrane inertia to pressure forces. A model of pressurised membrane impact is provided and compared with experiments. It shows that contact time depends mainly on I P with corrections on P E andP.
Document type :
Journal articles
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-03294071
Contributor : Loïc Tadrist <>
Submitted on : Wednesday, July 21, 2021 - 2:01:33 PM
Last modification on : Saturday, July 24, 2021 - 9:50:02 AM

File

IE_2021_HAL.pdf
Files produced by the author(s)

Identifiers

Citation

Loïc Tadrist, Baptiste Darbois Texier, François Lanzetta, Lounès Tadrist. Impact of a pressurised membrane: contact time. International Journal of Impact Engineering, Elsevier, 2021, 156, pp.103963. ⟨10.1016/j.ijimpeng.2021.103963⟩. ⟨hal-03294071⟩

Share

Metrics

Record views

37

Files downloads

76