Higher-order coupled and uncoupled analyses of free edge effect in piezoelectric laminates under mechanical loadings

Autor:	Masoud Tahani, M. Mirzababaee
Rok vydání:	2009
Předmět:	Piezoelectric coefficient Materials science Free edge Displacement field Deformation theory Order (ring theory) Boundary value problem Composite material Piezoelectricity Potential energy
Zdroj:	Materials & Design. 30:2473-2482
ISSN:	0261-3069
DOI:	10.1016/j.matdes.2008.10.004
Popis:	In this paper, an analytical solution is presented to study the effect of electromechanical coupling on the interlaminar stresses at the free edges of piezoelectric laminated plates. The finite width laminated piezoelectric plates are subjected to uniform axial strain. The equilibrium equations along with the appropriate boundary conditions are obtained by choosing a suitable displacement field based on fourth-order shear-thickness deformation theory and using the principle of minimum total potential energy. The analytical solutions are obtained and the results are compared with those available in the literature. It is found that the interlaminar stresses at the free edges are significantly higher in the coupled case for cross-ply laminates, whereas the coupling effect for symmetric angle-ply laminates is of minor significance.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c055c14f8b183b2f9f684be0d5a4caf2 https://doi.org/10.1016/j.matdes.2008.10.004 Zobrazit plný text záznamu Full Text from ScienceDirect