圧電ｰ圧磁材料接合体に対する特異応力場の３次元有限要素解析

抄録

The materials with property of piezoelectric and piezomagnetic are often seen in high function or high performance sensor. And, dissimilar joints using the material property are used for such sensor much. When external force, electricity and magnetic are acted on the piezoelectric-piezomagnetic joints material, singular stress field is generated in the corner junction of the body junction, causing a decrease in the strength of the material, there is reliability may be lost.

Therefore, analysis of the order of singularity which indicates the strength of the singularity is needed. In the present study, the order of singularity in the interface of piezoelectric-piezomagnetic material joints is analyzed by an eigenvalue analysis based on a three-dimensional finite element method. And, the influence to the order of singularity of the material properties is considered.