Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
High-Order Analysis of Unidirectional Sandwich Panels with Piezolaminated Face Sheets and Soft Core
Ist Teil von
AIAA journal, 2003-01, Vol.41 (1), p.110-118
Ort / Verlag
Reston, VA: American Institute of Aeronautics and Astronautics
Erscheinungsjahr
2003
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
The bending behavior of unidirectional sandwich panels ("wide" or "narrow" beams) with a compressible "soft" core and piezoelectric active face sheets is investigated. The panels studied consist of composite face sheets with embedded active piezoelectric layers and a compressible core. The mathematical formulation adopts the principles of the high-order sandwich panel theory. The field equations and the boundary and continuity conditions are derived through the variational principle of virtual work, and the electromechanical effect is introduced using the linear piezoelectric constitutive equations. Higher-order effects due to flexibility of the core are incorporated in the analysis as a result of the solution of the field equations and are not presumed a priori. Numerical results are presented for typical cases of active sandwich panels and the effectiveness of various electrical actuation schemes is investigated. The effects associated with using piecewise continuous active layers are also investigated and discussed. The results reveal the capabilities of the proposed model and highlight some of the problems involved with the analysis and design of active sandwich panels. (Author)