Simulating plastic surgery: From human skin tensile tests, through hyperelastic finite element models to real-time haptics

Lapeer, R. J.; Gasson, P.; Karri, Vasudev

doi:10.1016/j.pbiomolbio.2010.09.013

Cited by 77 publications

(65 citation statements)

References 19 publications

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“…Skin hydration level, contributions of the specific skin layers, as well as the anisotropic and Current research on skin mechanics aims at capturing the above-mentioned properties and integrating them into theoretical/analytical [116,118,128] and numerical models (e.g. linear viscoelastic or hyperelastic models) [62,116,125,126,[137][138][139][140], previously validated for elastomers and polymers, to develop and implement improved and more realistic mechanical finite element models of human skin.…”

Section: Mechanical Properties Of Human Skinmentioning

confidence: 99%

Tribology of Skin: Review and Analysis of Experimental Results for the Friction Coefficient of Human Skin

2011

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In this review, we discuss the current knowledge on the tribology of human skin and present an analysis of the available experimental results for skin friction coefficients. Starting with an overview on the factors influencing the friction behaviour of skin, we discuss the up-to-date existing experimental data and compare the results for different anatomical skin areas and friction measurement techniques. For this purpose, we also estimated and analysed skin contact pressures applied during the various friction measurements. The detailed analyses show that substantial variations are a characteristic feature of friction coefficients measured for skin and that differences in skin hydration are the main cause thereof, followed by the influences of surface and material properties of the contacting materials. When the friction coefficients of skin are plotted as a function of the contact pressure, the majority of the literature data scatter over a wide range that can be explained by the adhesion friction model. The case of dry skin is reflected by relatively low and pressureindependent friction coefficients (greater than 0.2 and typically around 0.5), comparable to the dry friction of solids with rough surfaces. In contrast, the case of moist or wet skin is characterised by significantly higher (typically [1) friction coefficients that increase strongly with decreasing contact pressure and are essentially determined by the mechanical shear properties of wet skin. In several studies, effects of skin deformation mechanisms contributing to the total friction are evident from friction coefficients increasing with contact pressure. However, the corresponding friction coefficients still lie within the range delimited by the adhesion friction model. Further research effort towards the analysis of the microscopic contact area and mechanical properties of the upper skin layers is needed to improve our so far limited understanding of the complex tribological behaviour of human skin.

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Section: Mechanical Properties Of Human Skinmentioning

confidence: 99%

Tribology of Skin: Review and Analysis of Experimental Results for the Friction Coefficient of Human Skin

2011

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“…Se han utilizado tres tipos principales de ecuaciones constitutivas para poder determinar correctamente las propiedades mecánicas de la piel, las cuales corresponden con comportamientos: lineal [29], [20], [30], [31]; hiperelástico [25], [32], [33], [34] y viscoelástico [35], [36], [37], [38].…”

Section: La Pielunclassified

Influencia de los Parámetros Tribológicos en el Coeficiente de Fricción entre Polipropileno y Piel

2014

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ResumenSe adquirieron los datos sobre la topología superficial de sockets para amputados transfermorales utilizando un microscopio de fuerzas atómicas (AFM), se caracterizaron las propiedades tribológicas de 12 zonas significativas, a partir de estos datos se crearon superficies virtuales con geometría sinusoidal de 250m de área, las cuales fueron empleadas para llevar a cabo una simulación numérica para encontrar cual era la relación entre dichos parámetros y el coeficiente de fricción entre el polipropileno del socket y la piel. La piel se modeló como un material híper-elástico y el polipropileno como un material elástico lineal, se impuso un desplazamiento inicial de contacto y un desplazamiento tangencial de las probetas para calcular el coeficiente de fricción, adicionalmente, se aplicó una presión a la parte superior de las probetas de polipropileno que simulan las presiones generadas por el calzado de la prótesis y las fuerzas generadas durante la fase de apoyo de la marcha humana. Se encontró que existe una correlación entre los 1

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“…Tensile stress tests were carried out on human skin samples, and the resulting data were incorporated into a hyperelastic computer model. Ultimately this lab anticipates coupling the software with a haptic feedback device to create a real-time plastic surgery simulation in an interactive virtual environment (Lapeer et al, 2010). Alteration of the geometry and topology of skin is central to plastic surgery; another new simulator accurately models these changes in response to surgical intervention.…”

Section: Skillmentioning

confidence: 99%

Simulation in Plastic Surgery Training: Past, Present and Future

Arbogast¹,

Rosen²

2012

Current Concepts in Plastic Surgery

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Simulating plastic surgery: From human skin tensile tests, through hyperelastic finite element models to real-time haptics

Cited by 77 publications

References 19 publications

Tribology of Skin: Review and Analysis of Experimental Results for the Friction Coefficient of Human Skin

Tribology of Skin: Review and Analysis of Experimental Results for the Friction Coefficient of Human Skin

Influencia de los Parámetros Tribológicos en el Coeficiente de Fricción entre Polipropileno y Piel

Simulation in Plastic Surgery Training: Past, Present and Future

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