Dual-parameter optimisation of the elastic properties of skin

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.

[1]  R. Toscano,et al.  A new stochastic inverse identification of the mechanical properties of human skin , 2011 .

[2]  H. Zahouani,et al.  Use of the Kalman filters for the analysis of the mechanical properties of human skin in vivo , 2008 .

[3]  R M Kenedi,et al.  Biomechanical properties of skin. , 1967, The Surgical clinics of North America.

[4]  Mechanical skin thinning-to-thickening transition observed in vivo through 2D high frequency elastography. , 2010, Journal of biomechanics.

[5]  J. Lagarde,et al.  In vivo model of the mechanical properties of the human skin under suction , 2000, Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging.

[6]  G Josse,et al.  A nonlinear elastic behavior to identify the mechanical parameters of human skin in vivo , 2008, Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging.

[7]  G. Compagno,et al.  A ballistometer for the study of the plasto-elastic properties of skin. , 1977, The Journal of investigative dermatology.

[8]  H. Zahouani,et al.  Study of adhesion forces and mechanical properties of human skin in vivo , 2004 .

[9]  P. Clarys,et al.  Mechanical function of the skin: state of the art. , 1998, Current problems in dermatology.

[10]  H Alexander,et al.  Accounting for natural tension in the mechanical testing of human skin. , 1977, The Journal of investigative dermatology.

[11]  Cwj Cees Oomens,et al.  A numerical‐experimental method to characterize the non‐linear mechanical behaviour of human skin , 2003, Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging.

[12]  J. Lagarde,et al.  Model of the viscoelastic behaviour of skin in vivo and study of anisotropy , 2004, Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging.

[13]  J. Lévêque,et al.  Age-related mechanical properties of human skin: an in vivo study. , 1989, The Journal of investigative dermatology.

[14]  Yassine Mofid,et al.  A human skin ultrasonic imaging to analyse its mechanical properties , 2009 .

[15]  B Finlay,et al.  The torsional characteristics of human skin in vivo. , 1971, Biomedical engineering.

[16]  C. Daly.  Biomechanical properties of dermis. , 1982, The Journal of investigative dermatology.

[17]  M. Sato.  [Mechanical properties of living tissues]. , 1986, Iyo denshi to seitai kogaku. Japanese journal of medical electronics and biological engineering.

[18]  P. Payne,et al.  Measurement of properties and function of skin. , 1991, Clinical physics and physiological measurement : an official journal of the Hospital Physicists' Association, Deutsche Gesellschaft fur Medizinische Physik and the European Federation of Organisations for Medical Physics.

[19]  Cwj Cees Oomens,et al.  The relative contributions of different skin layers to the mechanical behavior of human skin in vivo using suction experiments. , 2006, Medical engineering & physics.

[20]  D L Bader,et al.  Mechanical characteristics of skin and underlying tissues in vivo. , 1983, Biomaterials.

[21]  Jean-Michel Lagarde,et al.  Automatic measurement of dermal thickness from B‐scan ultrasound images using active contours , 2005, Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging.

[22]  R. Toscano,et al.  H2∕H∞ Robust Static Output Feedback Control Design Without Solving Linear Matrix Inequalities , 2007 .

[23]  J. Lévêque,et al.  Mechanical properties and Young's modulus of human skin in vivo , 2004, Archives of Dermatological Research.

[24]  J. Lagarde,et al.  Skin ageing: changes of physical properties of human skin in vivo , 2001, International journal of cosmetic science.