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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/4228
Title: Shear lag prediction in symmetrical laminated composite box beams using artificial neural network
Authors: Chandak R.
Upadhyay, Akhil
Bhargava, Pradeep
Published in: Structural Engineering and Mechanics
Abstract: Presence of high degree of orthotropy enhances shear lag phenomenon in laminated composite box-beams and it persists till failure. In this paper three key parameters governing shear lag behavior of laminated composite box beams are identified and defined by simple expressions. Uniqueness of the identified key parameters is proved with the help of finite element method (FEM) based studies. In addition to this, for the sake of generalization of prediction of shear lag effect in symmetrical laminated composite box beams a feed forward back propagation neural network (BPNN) model is developed. The network is trained and tested using the data base generated by extensive FEM studies carried out for various b/D, b/tF, tF/tw and laminate configurations. An optimum network architecture has been established which can effectively learn the pattern. Computational efficiency of the developed ANN makes it suitable for use in optimum design of laminated composite box-beams.
Citation: Structural Engineering and Mechanics(2008), 29(1): 77-89
URI: https://doi.org/10.12989/sem.2008.29.1.077
http://repository.iitr.ac.in/handle/123456789/4228
Issue Date: 2008
Publisher: Techno Press
Keywords: Artificial neural networks
Effective width ratio
Finite element method
Laminated composites
Shear lag
ISSN: 12254568
Author Scopus IDs: 6505966609
13608643500
14068541600
Author Affiliations: Chandak, R., Department of Civil Engineering, Indian Institute of Technology, Roorkee, 247667, India
Upadhyay, A., Department of Civil Engineering, Indian Institute of Technology, Roorkee, 247667, India
Bhargava, P., Department of Civil Engineering, Indian Institute of Technology, Roorkee, 247667, India
Corresponding Author: Upadhyay, A.; Department of Civil Engineering, Indian Institute of Technology, Roorkee, 247667, India; email: akhilfce@iitr.ernet.in
Appears in Collections:Journal Publications [CE]

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