Free edge coupling of piezoelectric cross-ply laminated plates

Chao Han, Jack Wu

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

Abstract

Free edge effect of laminated plates has been extensively investigated in the past two decades. Due to the boundary condition limitation, very limited work on piezoelectric laminated plates with free edges was carried out. In this paper, coupled and uncoupled analytical analyses on the interlaminar stresses in the vicinity of the free edges of piezoelectric laminated plates are presented on the basis of three-dimensional elasticity and piezoelectricity. The state space equations for cross-ply piezoelectric laminates subjected to uniaxial extension are obtained by considering all independent elastic and piezoelectric constants. The equations satisfy the boundary conditions at free edges and the continuity conditions across the interfaces between plies of the laminates. Three dimensional exact solution is sought and validated by comparing present numerical results with those of existing approximate analytical and finite element models. The singularity of the interlaminar stresses near the free edges is confirmed and the electromechanical coupling effects give much higher interlaminar stresses at the free edges in comparison with those of the corresponding uncoupled cases.
Original languageEnglish
Title of host publication13th International Conference on Fracture 2013
EditorsICF13 Secretaria
Place of PublicationCurran Associates, Inc. NY 12571 USA
PublisherCurran Associates Incorporated
Pages191-200
Number of pages10
Volume1
ISBN (Print)978-1-62993-369-6
Publication statusPublished - Mar 2014
EventInternational Conference on Fracture - Beijing
Duration: 16 Jun 201321 Jun 2013
http://www.gruppofrattura.it/ocs/index.php/ICF/icf13/paper/viewFile/11060/10439

Conference

ConferenceInternational Conference on Fracture
CityBeijing
Period16/06/1321/06/13
Internet address

Keywords

  • piezoelectricity, laminated plate, coupling effect, interface stress, exact solution

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