Abstract
This paper presents a finite element model to investigate the analysis of free vibration of beams with composite coats. We used two sandwich beam models; the core is made from an isotropic material, the steel as heavy material, for first model, and the foam as light material, employed in the second model. The faces are made from glass/epoxy composite material for the two models. The natural frequency and mode shapes of the sandwich beam are controlled by choosing the proper fiber orientation, the laminate thickness and the boundary conditions. The effects of these parameters are examined for the two models with different boundary conditions imposed on the beam. Good agreements were achieved between the finite element method and analytical solutions. DOI: http://dx.doi.org/10.5755/j01.mech.21.4.9849
Highlights
In the modern civil engineering structures, such as buildings, steel framed structures and bridges, use of coated laminated composite beams has increased rapidly in recent years
Kadivar et al, [9] the one dimensional finite elements based on classical lamination theory, first-order shear deformation theory, and higherorder shear deformation theory are developed to study the dynamic response of an unsymmetric composite laminated orthotropic beam
The free vibration of strengthened beams by composite coats has been investigated by use of finite element method (FEM)
Summary
In the modern civil engineering structures, such as buildings, steel framed structures and bridges, use of coated laminated composite beams has increased rapidly in recent years. Zibdeh et al [7] studied the vibration of a -supported laminated composite coated beam traversed by a random moving load. Tekili et al, [8] utilised the analytical analysis of free vibration of -supported laminated composite coated beams. Mohebpour et al, [10] presented the free vibration and moving oscillator problems analysis of isotropic and composite laminated beams are presented using the finite element method. The free vibration of strengthened beams by composite coats has been investigated by use of finite element method (FEM). For this purpose, a computer code is developed using MATLAB to perform the finite element vibration analysis. The beam frequencies extracted in this regard will be compared with those obtained analytically
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
