結晶均質化法に基づく微視的圧電弾性挙動の有限要素解析

概要

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Property of polycrystalline piezoelectric material is strongly affected by its crystal orientation distribution, because the crystal lattice has a strong anisotropy. In our previous study, a multi-scale finite element analysis code based on crystallographic homogenization method has been proposed to predict macroscopic piezoelectric properties. It can analyze the microscopic behavior in keeping a compatibility with the macroscopic response. In this study, the microscopic behaviors of piezoelectric materials under macroscopic uniform mechanical/electrical loading were analyzed. At first, the microscopic piezo-electroelastic responses of polycrystals are evaluated by employing the statistical procedure. Next, those heterogeneous behaviors were characterized by symmetrized dot pattern (SDP) method. Finally, the availability of these multi-scale characterization methods were confirmed.
一般社団法人日本機械学会の論文
2003-08-25