Effect of Fiber Angles on Dynamic Response of Cantilever Composite Beams

Nazhad Ahmad hussein, Dilshad Mohammed


In this paper, the natural frequencies and mode shapes for free vibration of cantilever composite beams are investigated on the bases of the analytical, numerical and experimental methods. The analytical was based on Euler-Bernoulli beam and the numerical method which based on the finite element theory has been divided into two types of analysis, one which based on the numerical formulation by using MATLAB program and secondly, using computer program (SolidWorks) for simulation. Finally the experimental analysis was carried out to validate the results. The specimens are built in the form of unidirectional laminates by hand-lay-up process. Numerical results have been computed to introduce the effects of fibers angles and fibers volume fractions on the natural frequencies and the mode shapes of the composite beams.


Dynamic Analysis, Composite Beams, Natural Frequency, Solid Works, Euler-Bernoulli Beam.

Full Text:



M.Krawczuk [1993], A new finite element for static and dynamic analysis of cracked composite beam, International journal of computer and structures 43.

S.R. Marur, T. Kant [1996], Free vibration analysis of fiber reinforced composite beams using higher order theories and finite element modeling, Journal of Sound and Vibration 194, 337-351.

J.R. Banerjee [2001], Frequency equation and mode shape formulae for composite Timoshenko beam, Composite Structures 51, 381-388.

P. Subramanian [2006], Dynamic analysis of laminated composite beams using higher order theories and finite element, Composite Structures 73, 342-353.

Mehmet Çevik [2008], Effect of fiber angle on out-of-plane and in-plane natural frequencies of laminated composite beams, Journal of Engineering and Natural Sciences 26( 2).

Li Jun, Hua Hongxing, Shen Rongying [2008], Dynamic finite element method for generally laminated composite beam, International Journal of Mechanical Sciences 50, 466-480.

Pragyan Saraswati Bisi [2011], Vibration and buckling analysis of cracked composite beam, Msc. Thesis, Department of Civil Engineering National Institute of Technology Rourkela.

M. Eftekhari, M. Mahzoon, S. Ziaie Rad [2011], An evolutionary search technique to determine natural frequencies and mode shapes of composite Timoshenko beams Mechanics Research Communications 38, 220–225.

Thuc P. Vo, Huu-Tai Thai [2012], Static behavior of composite beams using various refined shear deformation theories, Composite Structures 94, 2513–2522

K. Mahesh Dutt, Dr. H.K. Shivanand [2012], Experimental investigations of modal parameters of laminated composites (Graphite & Kevlar) using FFT analyzer, Department of Mechanical Eng., U.V.C.E, Bangalore, India.

Ramazan A. Jafari-Talookolaei, Maryam Abedi, Mohammad H. Kargarnovin [2012], An analytical approach for the free vibration analysis of generally laminated composite beams with shear effect and rotary inertia, International Journal of Mechanical Sciences 65, 97–104.

M. Adnan Elshafei [2013], FE Modeling and Analysis of Isotropic and Orthotropic Beams Using First Order Shear Deformation Theory, Materials Sciences and Applications 4, 77-102.

Abdul Khader Shahadaf Th. [2013], Vibration analysis of composite beam with Crack, Msc. Thesis, Department of Civil Engineering National Institute of Technology Rourkela.


  • There are currently no refbacks.

ZANCO Journal of Pure and Applied Sciences (print version: ISSN 2218-0230 online version: ISSN 2412-3986, DOI: 10.21271) is published by Salahaddin University-Erbil / Department of Scientific Publications. Responsibility for the contents  rests upon the authors and not upon  Salahaddin University-Erbil or the Journal Editorial and Advisory Boards. 

Department of Scientific Publication Office: The Central Library of Salahaddin University-Erbil, Kirkuk Road, Erbil, Kurdistan, Iraq. Phone:      +964 (0)66 2580274, email: zanco.scientific@su.edu.krd. www.su.edu.krd, www.zancojournals.su.edu.krd

Copyright and Reprint Permission: It is the policy of ZANCO to own the copyright to the technical contributions it publishes and to facilitate the appropriate reuse of this material by others. Photocopying is permitted with credit to the source for individuals for individual use.

Copyright © 2017. All Rights Reserved. Salahaddin University-Erbil