Title :
Constitutive modeling of human skin allowing for anisotropy and growth
Author :
Bischoff, J.E. ; Arruda, E.M. ; Grosh, K.
Author_Institution :
Dept. of Mech. Eng. & Appl. Mech., Michigan Univ., Ann Arbor, MI, USA
Abstract :
In this paper, a constitutive law for skin is proposed which possesses parameters that are more physiologically based than those used previously for skin modeling. The Arruda-Boyce hyperelastic constitutive law, previously used in its incompressible form with success to model elastomers in various deformation states, has been generalized for compressible or nearly incompressible materials and incorporated into a finite element code to model skin data from the literature. The physiologic basis of this law allows for the incorporation of additional physics, including anisotropic response and stress-assisted growth, in terms of skin constitution parameters such as fiber cross-link density and fiber length
Keywords :
biomechanics; finite element analysis; physiological models; skin; Arruda-Boyce hyperelastic constitutive law; compressible materials; constitutive modeling; fiber cross-link density; fiber length; finite element code; human skin; nearly incompressible materials; skin anisotropy; skin biomechanics; skin constitution parameters; skin growth; Anisotropic magnetoresistance; Constitution; Deformable models; Finite element methods; Humans; Jacobian matrices; Physics; Skin; Stress; Temperature;
Conference_Titel :
[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5674-8
DOI :
10.1109/IEMBS.1999.802171