کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
874924 910355 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterization of the mechanical properties of skin by inverse analysis combined with the indentation test
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی پزشکی
پیش نمایش صفحه اول مقاله
Characterization of the mechanical properties of skin by inverse analysis combined with the indentation test
چکیده انگلیسی

This study proposes a new method to determine the mechanical properties of human skin by the use of the indentation test [Pailler-Mattei, 2004. Caractérisation mécanique et tribologique de la peau humaine in vivo, Ph.D. Thesis, ECL-no. 2004-31; Pailler-Mattei, Zahouani, 2004. Journal of Adhesion Science and Technology 18, 1739–1758]. The principle of the measurements consists in applying an in vivo compressive stress [Zhang et al., 1994. Proceedings of the Institution of Mechanical Engineers 208, 217–222; Bosboom et al., 2001. Journal of Biomechanics 34, 1365–1368; Oomens et al., 1984. Selected Proceedings of Meetings of European Society of Biomechanics, pp. 227–232; Oomens et al., 1987. Journal of Biomechanics 20(9), 877–885] on the skin tissue of an individual's forearm. These measurements show an increase in the normal contact force as a function of the indentation depth. The interpretation of such results usually requires a long and tedious phenomenological study. We propose a new method to determine the mechanical parameters which control the response of skin tissue. This method is threefold: experimental, numerical, and comparative. It consists combining experimental results with a numerical finite elements model in order to find out the required parameters. This process uses a scheme of extended Kalman filters (EKF) [Gu et al., 2003. Materials Science and Engineering A345, 223–233; Nakamura et al., 2000. Acta Mater 48, 4293–4306; Leustean and Rosu, 2003. Certifying Kalman filters. RIACS Technical Report 03.02, 27pp. http://gureni.cs.uiuc.edu/~grosu/download/luta+leo.pdf; Welch and Bishop, An introduction to Kalman filter, University of North Carolina at Chapel Hill, 16p. http://www.cs.unc.edu/~welch/kalman/]. The first results presented in this study correspond to a simplified numerical modeling of the global system. The skin is assumed to be a semi-infinite layer with an isotropic linear elastic mechanical behavior [Zhang et al., 1994. Proceedings of the Institution of Mechanical Engineers 208, 217–222] This analysis will be extended to more realistic models in further works.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Biomechanics - Volume 39, Issue 9, 2006, Pages 1603–1610
نویسندگان
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