INSIGHTS INTO THE YOUNG’S MODULUS OF HUMAN FINGER SKIN: EVALUATING CONTACT AREA AND INDENTATION CREEP BEHAVIOUR

Andrei CĂLIN, Andrei TUDOR, Milos KNEZEV

Abstract


The study focuses on the properties of human finger skin, utilising the CETR-UMT2 setup to enhance human-machine interactions and ergonomic designs. The research comprises two main sections: measuring the contact area with cylindrical bronze indenters of varying diameters under different forces and investigating indentation creep behaviour to calculate Young's Modulus. The findings show a non-linear response of skin stiffness to increased forces, supporting previous studies. The second part, employing a Hertzian contact model, determines Young's Modulus of finger skin to be approximately 310 kPa, in line with existing literature. The study concludes with a direct relationship between skin deformation and applied force, and an inverse relationship with indenter diameter.

References


Agache, P, Humbert, P. 2004. Measuring the Skin—Non-Invasive Investigations. Berlin: Physiology, Normal Constants, 2004. Vol. 1.

Mosteller, RD. 1987. Simplified calculation of body-surface area, N Engl J Med. 1987 Oct 22;317(17):1098. doi: 10.1056/NEJM198710223171717. PMID: 3657876.

Richard LG. 2017. Human Skin Is the Largest Epithelial Surface for Interaction with Microbes, Journal of Investigative Dermatology, Volume 137, Issue 6, 2017, Pages 1213-1214, ISSN 0022-202X

University, Rice. 2018. OpenStax Anatomy and Physiology. 2018.

Brown, I A. 1973. Scanning electron-microscope study of effects of uniaxial tension on human skin. s.l. : British Journal of Dermatology, 1973. pg. 383-393. Vol. 89.

Holzapfel, G A. 2000b. Biomechanics of soft tissue. Handbook of material behavior nonlinear models and properties, France.

Larrabee W F, Sutton D. 1986. A finite element model of skin deformation. II:An Experimental Model of Skin Deformation. Laryngoscope 1986, 96(4) 406-12

Maaß H, Kiihnapfel U. 1999. Noninvasive measurement of elastic properties of living tissue. Proceedings of the European Medical and Biological Engineering Conference EMBEC 99. Med Biol Eng Comput 1999;37(2):1460-1.

Erkamp RQ, Wiggins P. 1998., Skovoroda AR, Emelianov SY, O'Dodonnell M.Measuring the elastic modulus of small tissue samples. Ultrasonic Imaginging 1998;20(1):17-28.

Geerligs, M, et al. 2011. In vitro indentation to determine the mechanical properties of epidermis. s.l. : Journal of Biomechanics, 2011. pg. 1176-1181. Vol. 44(6).

Jachowicz J., McMullen R., Prettypaul, D. 2008. Indentometric analysis of in vivo skin and comparison with artificial skin models. International Specialty Products, Wayne, NJ, USA , 2008. Skin Research and Technology 2007; 13: 299–309

Bader, D., Bowker, P. 1983. Mechanical characteristics of skin and underlying tissues in-vivo. s.l. : Biomaterials, 1983. pg. 305-308. Vol. 4.

Agache, P, et al. 1980. Mechanical properties and Young's Modulus of human skin in vivo. s.l. : Archives of Dermatological Research, 1980. pg. 221-232. Vol. 269.

Barel, A O, Courage, W and Clarys, P. 1995. Suction method for measurement of skin mechanical: the Cutometer. s.l. : Handbook of Non-Invasive Methods and the skin. Boca Raton, CRC Press, 1995. pg. 335-340.

Diridollou, S, et al. 2020. In vivo model of the mechanical properties of the human skin under suction. s.l. : Skin Research and Technology, 2020. pg. 214-221. Vol. 6.

Sanders, J E and Goldstein, B S. 2001. Collagen fibril diameters increase and fibril densities decrease în skin subjected to repetitive compressive and shear stresses. s.l. : Journal of Biomechanics, 2001. pg. 1581-1587. Vol. 34.

Grahame, R. 1969. Elasticity of human skin in vivo. s.l. : Annals of physical medicine, 1969. pg. 130-134. Vol. 10.

Escoffier, C, et al. 1989. Age-related mechanical properties of human skin: An in vivo study. s.l. : The Journal of Investigative Dermatology, 1989. pg. 353-357. Vol. 93.


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