Journal
COMPOSITE STRUCTURES
Volume 176, Issue -, Pages 640-653Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2017.05.062
Keywords
Piezoeletric material; Functionally graded material; Timoshenko smart beam; Radial basis function
Categories
Funding
- Ministerio da Ciencia, Tecnologia e do Ensino Superior (MCTES) under program POPH-QREN
- Ministerio da Ciencia, Tecnologia e do Ensino Superior (MCTES) under program Investigador FCT
- Fundo Social Europeu (FSE) under program POPH-QREN
- Fundo Social Europeu (FSE) under program Investigador FCT
Ask authors/readers for more resources
In the present work, a global interpolation scheme is proposed to describe the electro-mechanical static response of piezoelectric smart beams considering applied mechanical loads and electric potential. First, bimorph and three-layered Timoshenko smart beams are investigated and the model is validated for both actuator and sensor capabilities. Lastly, a functionally graded piezoelectric (FGP) bimorph beam is studied in its actuator configuration. The governing equations of motion are derived by the application of Hamilton's principle considering an equivalent-single-layer first-order-shear-deformation theory (ESLFSDT) with layerwise electric potential. The equations are subsequently solved using a grid free method based on Kansa's asymmetric collocation using multiquadric radial basis functions (RBFs). The method relies on the Euclidean distance between nodes and on a shape parameter which must be warily selected to avoid matrix ill-conditioning. Accurate results are obtained while maintaining a very low computational cost. (C) 2017 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available