薄膜押し込み試験を用いた超弾性材料のエネルギー関数同定

抄録

In order to construct soft actuater, to know the deformation behavior of hyperelastic materials such as rubber is important. It is necessary to obtain parameters of energy functions, which are determined by using the experimental data. Not only uniaxial elongation test data, but also biaxial and simple shear data should be requailed. But, biaxial and simple shear test are difficult. Therefore, in this study, a equipment, which makes indentation of a thin disc specimen, is constructed. The uniaxial, biaxial and simple shear data can be obtained by the present equipment at one time. The parameters of various energy functions are identified by minimizing the mean square of the difference between the experimental results and the simulation results, which are calculated by the finite element method.