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Title: Transient response in cross-ply laminated cylinders and its application to reconstruction of elastic constants
Authors: Han, X. 
Liu, G.R. 
Li, G.Y.
Keywords: Axisymmetric
Circular cylindrical structure
Composite laminate
Elastic wave
Material characterization
Neural network
Issue Date: Mar-2004
Citation: Han, X.,Liu, G.R.,Li, G.Y. (2004-03). Transient response in cross-ply laminated cylinders and its application to reconstruction of elastic constants. Computers, Materials and Continua 1 (1) : 39-49. ScholarBank@NUS Repository.
Abstract: An efficient hybrid numerical method is presented for investigating transient response of crossply laminated axisymmetric cylinders subjected to an impact load. In this hybrid numerical method, the laminated cylinder is divided into layered cylindrical elements in the thickness direction. The Hamilton principle is used to develop governing equations of the structure. The displacement response is determined by employing the Fourier transformations and the modal analysis. Numerical examples for analyzing transient waves have been provided in axisymmetric laminated cylindrical structures, both for thin cylindrical shells and thick cylinders. A computational inverse technique is also presented for reconstructing elastic constants of axisymmetric crossply laminated cylinders from the surface displacement response data, using the present hybrid numerical method as the forward solver and neural network as the inverse operator. This technique is utilized to reconstruct the elastic constants of an axisymmetric laminated cylindrical shell. Copyright © 2004 Tech Science Press.
Source Title: Computers, Materials and Continua
ISSN: 15462218
Appears in Collections:Staff Publications

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