TY  - EJOU
AU  - Han, X. 
AU  - Liu, G. R. 
AU  - Li, G. Y. 

TI  - Transient Response in Cross-Ply Laminated Cylinders and Its Application to Reconstruction of Elastic Constants
T2  - Computers, Materials \& Continua

PY  - 2004
VL  - 1
IS  - 1
SN  - 1546-2226

AB  - An efficient hybrid numerical method is presented for investigating transient response of cross-ply 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. <br/>
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.
KW  - Composite laminate
KW  -  circular cylindrical structure
KW  -  axisymmetric
KW  -  material characterization
KW  -  elastic wave
KW  -  NDT
KW  -  neural network

DO  - 10.3970/cmc.2004.001.039