Comptes Rendus
Acousto-mechanical behaviour of ex-vivo skin: Nonlinear and viscoelastic properties
Comptes Rendus. Mécanique, Volume 347 (2019) no. 3, pp. 218-227.

The mechanical behaviour of skin is significant for some applications including dermatology, surgery, and impact biomechanics science. In this work, we have investigated the study of the acousto-mechanical viscoelastic properties of skin. For that, both tensile-relaxation and ultrasonic tests were conducted on porcine tissue samples in fibre directions. To understand the complex skin aging phenomena, we used strength tensile test correlated with the Nonlinear Time Reversal signal processing tool extension “TR-NEWS”. Uniaxial tensile tests were carried out at a strain rate of 5103 mms1 on skin using a load-relaxation-discharge load path with increasing amplitude and offset. This work is also under way to extend the frequency range of ultrasounds to 50 MHz. Digital Image Correlation was used for 2D strain measurement of the dermis. From this analysis, we conclude that fresh porcine skin should be modelled as a nonlinear viscoelastic material with strain-rate dependence. The obtained hysteresis loop shall be taken as significant skin damage.

Published online:
DOI: 10.1016/j.crme.2018.12.005
Keywords: Skin, Strength tensile test, TR-NEWS measurements, Hysteresis, Nonlinearity, Viscoelasticity

Halima Ghorbel-Feki 1, 2, 3; Ali Masood 1, 2, 3; Michael Caliez 1, 2; Michael Gratton 1, 2; Jean Christophe Pittet 3; Martin Lints 1, 2; Serge Dos Santos 1, 2

1 INSA Centre Val de Loire, 3, rue de la Chocolaterie, CS 23410, 41034 Blois cedex, France
2 UMR 1253, Imaging and Brain: iBrain, Université de Tours, INSERM, Tours, France
3 Orion Concept, 113, rue des Bordiers, 37100 Tours, France
     author = {Halima Ghorbel-Feki and Ali Masood and Michael Caliez and Michael Gratton and Jean Christophe Pittet and Martin Lints and Serge Dos Santos},
     title = {Acousto-mechanical behaviour of ex-vivo skin: {Nonlinear} and viscoelastic properties},
     journal = {Comptes Rendus. M\'ecanique},
     pages = {218--227},
     publisher = {Elsevier},
     volume = {347},
     number = {3},
     year = {2019},
     doi = {10.1016/j.crme.2018.12.005},
     language = {en},
AU  - Halima Ghorbel-Feki
AU  - Ali Masood
AU  - Michael Caliez
AU  - Michael Gratton
AU  - Jean Christophe Pittet
AU  - Martin Lints
AU  - Serge Dos Santos
TI  - Acousto-mechanical behaviour of ex-vivo skin: Nonlinear and viscoelastic properties
JO  - Comptes Rendus. Mécanique
PY  - 2019
SP  - 218
EP  - 227
VL  - 347
IS  - 3
PB  - Elsevier
DO  - 10.1016/j.crme.2018.12.005
LA  - en
ID  - CRMECA_2019__347_3_218_0
ER  - 
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%A Halima Ghorbel-Feki
%A Ali Masood
%A Michael Caliez
%A Michael Gratton
%A Jean Christophe Pittet
%A Martin Lints
%A Serge Dos Santos
%T Acousto-mechanical behaviour of ex-vivo skin: Nonlinear and viscoelastic properties
%J Comptes Rendus. Mécanique
%D 2019
%P 218-227
%V 347
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%I Elsevier
%R 10.1016/j.crme.2018.12.005
%G en
%F CRMECA_2019__347_3_218_0
Halima Ghorbel-Feki; Ali Masood; Michael Caliez; Michael Gratton; Jean Christophe Pittet; Martin Lints; Serge Dos Santos. Acousto-mechanical behaviour of ex-vivo skin: Nonlinear and viscoelastic properties. Comptes Rendus. Mécanique, Volume 347 (2019) no. 3, pp. 218-227. doi : 10.1016/j.crme.2018.12.005.

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