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 language | English |
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Title of host publication | 13th International Conference on Fracture 2013 |
Editors | ICF13 Secretaria |
Place of Publication | Curran Associates, Inc. NY 12571 USA |
Publisher | Curran Associates Incorporated |
Pages | 191-200 |
Number of pages | 10 |
Volume | 1 |
ISBN (Print) | 978-1-62993-369-6 |
Publication status | Published - Mar 2014 |
Event | International Conference on Fracture - Beijing Duration: 16 Jun 2013 → 21 Jun 2013 http://www.gruppofrattura.it/ocs/index.php/ICF/icf13/paper/viewFile/11060/10439 |
Conference
Conference | International Conference on Fracture |
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City | Beijing |
Period | 16/06/13 → 21/06/13 |
Internet address |
Keywords
- piezoelectricity, laminated plate, coupling effect, interface stress, exact solution