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H.R. Ovesy¹, J. Fazilati² and M.R. Mahmoudabadi¹

¹Department of Aerospace Engineering, Centre of Excellence in Computational Aerospace Engineering, Amirkabir University of Technology, Tehran, Iran
²Astronautics Research Institute, Iranian Space Research Center, Tehran, Iran

doi:10.4203/ccp.106.24

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H.R. Ovesy, J. Fazilati, M.R. Mahmoudabadi, "Finite Strip Buckling and Free Vibration Analysis of Laminated Composite Plates containing Delamination using a First Order Layerwise Theory", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 24, 2014. doi:10.4203/ccp.106.24

Keywords: free vibrations, buckling, first order layerwise theory, composite plates, thick plates, delamination, finite strip method..

Summary

In order to investigate the buckling behavior and free vibration analysis of laminated composite plates including through the width delamination, multiple model methods (presented by Reddy) are used to present the kinematics of delamination using the concept of a Heaviside step function. Multiple model methods are a combination of two displacement fields namely first order shear deformation and layerwise. In order to present an approximation of the displacement field for the analysis, the B-spline finite strip method is used. In the model presented, it is assumed that the variation of in-plane displacement field is in the form of linear Lagrangian layerwise and the variation of out-of-plane displacement field is assumed to be constant through the thickness. The results are compared and verified by the available results in the literature. The influence of length and also the position of delamination on buckling behavior and natural frequencies of the structure are investigated.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 106 PROCEEDINGS OF THE TWELFTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY Edited by: Paper 24 Finite Strip Buckling and Free Vibration Analysis of Laminated Composite Plates containing Delamination using a First Order Layerwise Theory H.R. Ovesy¹, J. Fazilati² and M.R. Mahmoudabadi¹ ¹Department of Aerospace Engineering, Centre of Excellence in Computational Aerospace Engineering, Amirkabir University of Technology, Tehran, Iran ²Astronautics Research Institute, Iranian Space Research Center, Tehran, Iran doi:10.4203/ccp.106.24 purchase the full-text of this paper Full Bibliographic Reference for this paper H.R. Ovesy, J. Fazilati, M.R. Mahmoudabadi, "Finite Strip Buckling and Free Vibration Analysis of Laminated Composite Plates containing Delamination using a First Order Layerwise Theory", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 24, 2014. doi:10.4203/ccp.106.24 Keywords: free vibrations, buckling, first order layerwise theory, composite plates, thick plates, delamination, finite strip method.. Summary In order to investigate the buckling behavior and free vibration analysis of laminated composite plates including through the width delamination, multiple model methods (presented by Reddy) are used to present the kinematics of delamination using the concept of a Heaviside step function. Multiple model methods are a combination of two displacement fields namely first order shear deformation and layerwise. In order to present an approximation of the displacement field for the analysis, the B-spline finite strip method is used. In the model presented, it is assumed that the variation of in-plane displacement field is in the form of linear Lagrangian layerwise and the variation of out-of-plane displacement field is assumed to be constant through the thickness. The results are compared and verified by the available results in the literature. The influence of length and also the position of delamination on buckling behavior and natural frequencies of the structure are investigated. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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