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Porous Media pp 275–294Cite as

Biphasic description of viscoelastic foams by use of an extended Ogden-type formulation

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Abstract

Soft polymeric foams exhibit distinct relaxation and creep phenomena which in combination with the cellular micro structure result in the outstanding mechanical characteristics of this type of porous materials. It is the goal of this contribution to present an appropriate biphasic continuum mechanical model based on the Theory of Porous Media (TPM) which allows the description of viscoelastic foams at a suitable means of computational costs. To reproduce the complex behaviour of the cellular polymer skeleton an extended Ogden-type viscoelasticity formulation is embedded into the porous media concept. Thus, the macroscopic model accounts for all relevant physical properties, i. e. the porous cell structure, the moving and interacting pore-fluid, and the intrinsic viscoelasticity of the polymeric matrix material.

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Authors and Affiliations

  1. Institute of Applied Mechanics (CE), University of Stuttgart, 70550, Stuttgart, Germany

    Wolfgang Ehlers, Bernd Markert & Oliver Klar

Authors
  1. Wolfgang Ehlers
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  2. Bernd Markert
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  3. Oliver Klar
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Editors and Affiliations

  1. Institut für Mechanik (Bauwesen), Lehrstuhl II, Universität Stuttgart, Pfaffenwaldring 7, D-70569, Stuttgart, Germany

    Wolfgang Ehlers

  2. Institut für Mechanik, Universität Essen, Universitätsstr. 15, D-45141, Essen, Germany

    Joachim Bluhm

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Ehlers, W., Markert, B., Klar, O. (2002). Biphasic description of viscoelastic foams by use of an extended Ogden-type formulation. In: Ehlers, W., Bluhm, J. (eds) Porous Media. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-04999-0_9

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  • DOI: https://doi.org/10.1007/978-3-662-04999-0_9

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-07843-9

  • Online ISBN: 978-3-662-04999-0

  • eBook Packages: Springer Book Archive

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