The static interaction between a laminate and distributed piezoelectric actuators is considered. In particular the problem of the stress concentration at the free edge of the active elements of a piezoelectric composite is investigated. A finite element model for the laminated composite plate is developed using a multi-layer higher-order finite element approach. A typical configuration is considered, in which two active layers are bonded on the top and bottom of a passive substructure. A pure bending case is investigated. The obtained results provide useful information of the typical static response. A parametric study is also performed on the effects of the main geometrical characteristics on the intensity and the extension of edge effect.
Multi-layer higher-order finite elements for the analysis of free-edge stresses in piezoelectric actuated laminates / Mannini, Alessandro; Gaudenzi, Paolo. - In: COMPOSITE STRUCTURES. - ISSN 0263-8223. - 63, 3-4:3(2004), pp. 263-270. [10.1016/S0263-8223(02)00040-5]
Multi-layer higher-order finite elements for the analysis of free-edge stresses in piezoelectric actuated laminates
MANNINI, ALESSANDRO;GAUDENZI, Paolo
2004
Abstract
The static interaction between a laminate and distributed piezoelectric actuators is considered. In particular the problem of the stress concentration at the free edge of the active elements of a piezoelectric composite is investigated. A finite element model for the laminated composite plate is developed using a multi-layer higher-order finite element approach. A typical configuration is considered, in which two active layers are bonded on the top and bottom of a passive substructure. A pure bending case is investigated. The obtained results provide useful information of the typical static response. A parametric study is also performed on the effects of the main geometrical characteristics on the intensity and the extension of edge effect.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
