Characterisation of anisotropic and non-linear behaviour of human skin in vivo

R. Meijer, L.F.A. Douven, C.W.J. Oomens

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Abstract

The aim of this work is to characterise the in-plane mechanical behaviour of human skin in vivo. For this purpose the structural skin model proposed by Lanir [I] is employed and a mixed numerical-experimental method is developed. The numerical-experimental method is based on the confrontation of measured data from an experiment, with calculated data from a finite element model, eventually leading to the determination of some of the parameters of a constitutive model, in the present case Lanir's Skin Model. Since collagen, the main constituent of skin, dominates the anisotropic and non-linear behaviour of skin, the parameters of Lanir's Skin Model concerning the mechanical behaviour of the collagen fibres are estimated. In vivo experiments were carried out on the volar forearm. During the experiments, reaction forces and the displacement field at different states of deformation are measured. Both data sets are used for the determination of the parameters.
Original languageEnglish
Pages (from-to)13-27
JournalComputer Methods in Biomechanics and Biomedical Engineering
Volume2
Issue number1
DOIs
Publication statusPublished - 1999

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