کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4911753 1428531 2017 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis of functionally graded piezoelectric Timoshenko smart beams using a multiquadric radial basis function method
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Analysis of functionally graded piezoelectric Timoshenko smart beams using a multiquadric radial basis function method
چکیده انگلیسی
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 (ESL-FSDT) 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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 176, 15 September 2017, Pages 640-653
نویسندگان
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