On the Modelling of Wave Phenomena in Permeable Foam

  • M. E. H. van Dongen
  • D. M. J. Smeulders
  • T. Kitamura
  • K. Takayama
Conference paper

Abstract

The linear Biot theory for wave propagation in porous media is applied to waves in open-cell permeable foam. The reflection of a weak shock wave from a semi-infinite elastic foam is considered. It is shown that the deformation of the foam and the related effective stress are caused by friction. The non-linear permeability and stress-strain relation of a flexible polyurethane foam is investigated. An example is shown of the reflection of a weak shock wave with Mach number 1.04 from a slab of foam adjacent to a solid wall. Both end-wall pressure and effective stress are measured. A partial mechanical collapse of the foam is observed.

Key words

Permeable foam Wave phenomena 

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References

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Copyright information

© Springer-Verlag Berlin Heidelberg 1995

Authors and Affiliations

  • M. E. H. van Dongen
    • 1
    • 2
  • D. M. J. Smeulders
    • 1
  • T. Kitamura
    • 2
  • K. Takayama
    • 2
  1. 1.Faculty of Applied PhysicsEindhoven University of TechnologyEindhovenThe Netherlands
  2. 2.Shock Wave Research Center, Institute of Fluid ScienceTohoku UniversitySendaiJapan

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