OS0504-425 Investigation on singular fields at the vertex of interface in piezoelectric material joints

Singular electric displacement fields occur at the vertex of the interface in piezoelectric material joint under mechanical or electrical loadings. This means that a large electric displacement occurs arround a singular point. Concentrated electric displacement is useful for engineering and characteristics of electric singularity should be further investigated. In the present study, some characteristics of singular electric displacement fields in a piezoelectric material joint are investigated using 3-dimensional finite element analysis. Stress and electric displacement fields around singular point are analysed in detail and influences of loading conditions and geometric factors on the singular fields are discussed.