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Discrete Element Modelling of VACUUMATICS

Authors
Publisher
Hemming Group Ltd
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Disciplines
  • Engineering

Abstract

Microsoft Word - $ASQ10152667_File000000_181666787.doc Discrete Element Modelling of VACUUMATICS Frank HUIJBEN PhD Researcher Structural Design Eindhoven University of Technology (TU/e), Eindhoven, the Netherlands [email protected] Frank Huijben, born 1979, received his degree in architecture and structural engineering from the TU/e in 2008. Besides his PhD he works as a structural engineer at ABT Consulting Engineers in the Netherlands. Frans VAN HERWIJNEN Emeritus Professor Structural Design, Eindhoven University of Technology (TU/e) Eindhoven, the Netherlands [email protected] Frans van Herwijnen, born 1953, received his degree in structural engineering from the TU/e in 1978. He works as a consulting engineer at ABT Consulting Engineers in the Netherlands. Rob NIJSSE Professor Structural Engineering, Delft University of Technology (TUD) Delft, the Netherlands [email protected] Rob Nijsse, born 1953, received his degree in civil engineering from the TUD in 1979. He works as a structural consulting engineer at ABT Consulting Engineers in the Netherlands and as a professor in structural engineering at the TUD. Summary 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)

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