Discrete Element Modelling of VACUUMATICS

F.A.A. Huijben, F. Herwijnen, van, R. Nijsse

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Samenvatting

Vacuumatics consist of independent particles inside an airtight enclosed membrane, that are prestressed due to a difference in (air) pressure. Analytical and numerical research of vacuum prestressing has illustrated that the effective prestressing forces can be divided into two interrelated prestressing components. Due to the granular characteristics of Vacuumatics, the material behaviour can be modelled by means of the Discrete Element Method (DEM). The individual prestressing components acting on the edge particles of vacuumatic structures can be simulated by means of a specialised Atmospheric Pressure Model in HADES (by Habanera). Analytically defined equations form the basic input in this simulation process. These simulations enable us to analyse (visually as well as numerically) the prestressing forces, but also the contact forces and the displacements of each particle due to this vacuum prestressing. Furthermore, bending phenomena of beam-shaped Vacuumatics can be analysed in detail, providing us with insight to describe and predict the structural properties of any type of vacuumatic structure.
Originele taal-2Engels
TitelIABSE-IASS Symposium 2011 - Taller, Longer, Lighter
Plaats van productieLondon
UitgeverijHemming Group Ltd
Pagina's8-
ISBN van geprinte versie978-0-7079-7122-3
StatusGepubliceerd - 2011
EvenementIABSE-IASS Symposium 2011, September 20-23, 2011, London, UK - London, Verenigd Koninkrijk
Duur: 20 sep 201123 sep 2011

Congres

CongresIABSE-IASS Symposium 2011, September 20-23, 2011, London, UK
Land/RegioVerenigd Koninkrijk
StadLondon
Periode20/09/1123/09/11
AnderIABSE-IASS Symposium 2011 - Taller, Longer, Lighter

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