表情機構のコンピュータ・シミュレーション : 第2報,有限要素法による生体軟組織超弾性体のin vivo 物性同定と座屈および有限変形解析

概要

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It is the purpose of the investigation to clarify mechanisms of facial expressions and formation of wrinkles on a face with a hyper elastic skin. In the present study, parameters of mechanical properties are identified by using the results of both in vivo experiments and calculation by the finite-element method (FEM). We also carried out in vitro experiments for formation of wrinkles with a rabbit skin and conducted analysis of wrinkles, in which formulations of hyper elasticity and large deformation for a skin-fat composite were incrementally made as buckling and post-buckling problems, using the same model of the experiments. Furthermore, we carried out in vivo experiments and FEM analysis of wrinkles in the forehead skin of a human being. The validity of the analysis method proposed in this study and the usefulness of the developed FEM programs are demonstrated by comparison with the series of experimental results.
社団法人日本機械学会の論文
1994-02-25