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Dual-parameter optimisation of the elastic properties of skin

Author

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  • A. Delalleau
  • G. Josse
  • J. Lagarde

Abstract

This paper presents a procedure for characterising the mechanical properties of skin using stochastic inverse identification. It is based on the minimisation of a cost function relative to the comparison between experimental suction experiments and their corresponding finite element models. Two different models are compared: a classical single-layer approach and a dual-layer medium which account for both the dermis and the hypodermis. Finite element results are used to construct the pre-optimisation database which is required for the inverse analysis. To compare the calculations, the entire identification is based on a dual-parameter optimisation procedure: for the single-layer approach a quadratic hyperelastic constitutive equation is used, whereas for the dual-layer medium a simple neo-Hookean potential is used. Theoretical conclusions, which are developed first, are then compared with actual case studies.

Suggested Citation

  • A. Delalleau & G. Josse & J. Lagarde, 2012. "Dual-parameter optimisation of the elastic properties of skin," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 15(1), pages 83-92.
    • Handle: RePEc:taf:gcmbxx:v:15:y:2012:i:1:p:83-92
    DOI: 10.1080/10255842.2011.633904
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