In this paper, an alternative analysis strategy based on a Wavelet-Galerkin scheme specially tailored to solve impact problems of functionally graded orthotropic thin plates subjected to low-velocity impact is presented. The plate considered to be circular, is assumed to be clamped on its lateral edge and has internal supports of rigid, elastic and viscoelastic types. The material properties of the plate are represented in the form of exponential functions of the thickness coordinate. A rigid spherical indenter impacts the plate. The study is based on the classical lamination plate theory (CLT). An advanced contact law of the Hertzian type is adopted. A nonlinear Volterra integral equation system is obtained in the following unknown functions: the impact force and the dynamic reaction forces at the rigid, elastic and viscoelastic internal point supports. Numerical simulations displaying the contact force, the transversal displacement and the penetration depth are graphically presented, and pertinent conclusions regarding the implications of incorporation of graded material systems are outlined.
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ASME 8th Biennial Conference on Engineering Systems Design and Analysis
July 4–7, 2006
Torino, Italy
ISBN:
0-7918-4250-9
PROCEEDINGS PAPER
Low-Velocity Impact on a Functionally Graded Circular Thin Plate
Pantele Chelu,
Pantele Chelu
Polytechnic University of Timisoara, Timisoara, Romania
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Liviu Librescu
Liviu Librescu
Virginia Polytechnic Institute and State University, Blacksburg, VA
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Pantele Chelu
Polytechnic University of Timisoara, Timisoara, Romania
Liviu Librescu
Virginia Polytechnic Institute and State University, Blacksburg, VA
Paper No:
ESDA2006-95784, pp. 791-800; 10 pages
Published Online:
September 5, 2008
Citation
Chelu, P, & Librescu, L. "Low-Velocity Impact on a Functionally Graded Circular Thin Plate." Proceedings of the ASME 8th Biennial Conference on Engineering Systems Design and Analysis. Volume 3: Dynamic Systems and Controls, Symposium on Design and Analysis of Advanced Structures, and Tribology. Torino, Italy. July 4–7, 2006. pp. 791-800. ASME. https://doi.org/10.1115/ESDA2006-95784
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