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On the characterization of porosity-related parameters in micro-dilatation theory

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Abstract

Although micro-dilatation theory is very suitable and effective in modeling elastic porous materials, the absence of any guidance to evaluate or characterize its porosity-related parameters in the literature limited its use and applicability. This paper is proposing a methodology to characterize two of such important parameters, namely porosity change stress parameter and void stiffness coefficient, in terms of microstructural details such as average void radius and density of voids. Two numerical experiments were used to characterize these parameters, and results were validated by a comparison with a high-resolution finite element model of the microstructure with voids explicitly considered.

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Authors and Affiliations

  1. College of Engineering and Computer Science, California State University, Northridge, CA, USA

    P. L. Bishay

  2. Institution of Construction and Architecture, Slovak Academy of Sciences, 84503, Bratislava, Slovakia

    M. Repka, V. Sladek & J. Sladek

Authors
  1. P. L. Bishay
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  2. M. Repka
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  3. V. Sladek
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  4. J. Sladek
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Correspondence to P. L. Bishay.

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Bishay, P.L., Repka, M., Sladek, V. et al. On the characterization of porosity-related parameters in micro-dilatation theory. Acta Mech 228, 1631–1644 (2017). https://doi.org/10.1007/s00707-016-1789-9

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  • DOI: https://doi.org/10.1007/s00707-016-1789-9

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