Free vibration of a steel-concrete composite beam with coupled longitudinal and bending motions

2017 ◽  
Vol 24 (1) ◽  
pp. 79-91
Author(s):  
Jun Li ◽  
Li Jiang ◽  
Xiaobin Li
Keyword(s):  
Free Vibration ◽  
Composite Beam

Free Vibration Analysis of a Carbon Nanotube Reinforced Composite Beam

2014 ◽  
Vol 592-594 ◽  
pp. 2041-2045 ◽  
Author(s):  
B. Naresh ◽  
A. Ananda Babu ◽  
P. Edwin Sudhagar ◽  
A. Anisa Thaslim ◽  
R. Vasudevan
Keyword(s):  
Carbon Nanotube ◽  
Free Vibration ◽  
Composite Beam ◽  
Natural Frequencies ◽  
Equations Of Motion ◽  
Free Vibration Analysis ◽  
Mode Shapes ◽  
Element Formulation ◽  
Reinforced Composite ◽  
Vibration Responses

In this study, free vibration responses of a carbon nanotube reinforced composite beam are investigated. The governing differential equations of motion of a carbon nanotube (CNT) reinforced composite beam are presented in finite element formulation. The validity of the developed formulation is demonstrated by comparing the natural frequencies evaluated using present FEM with those of available literature. Various parametric studies are also performed to investigate the effect of aspect ratio and percentage of CNT content and boundary conditions on natural frequencies and mode shapes of a carbon nanotube reinforced composite beam. It is shown that the addition of carbon nanotube in fiber reinforced composite beam increases the stiffness of the structure and consequently increases the natural frequencies and alter the mode shapes.

scholarly journals Free Vibration Analysis of a Cracked Composite Beam

2013 ◽  
Vol 3 (1) ◽  
pp. 459-463 ◽  
Author(s):  
T Sunil Kumar ◽  
◽  
K Durga Rao ◽  
M.M.M. Sarcar ◽  
B.S.K.S. Rao
Keyword(s):  
Free Vibration ◽  
Composite Beam ◽  
Vibration Analysis ◽  
Free Vibration Analysis

Free vibration analysis of smart composite beam

2017 ◽  
Vol 4 (2) ◽  
pp. 2487-2491 ◽  
Author(s):  
G.A. Yashavantha Kumar ◽  
K.M Sathish Kumar
Keyword(s):  
Free Vibration ◽  
Composite Beam ◽  
Vibration Analysis ◽  
Free Vibration Analysis ◽  
Smart Composite

Effect of interface crack on lateral buckling behavior and free vibration response of a sandwich composite beam

2012 ◽  
Vol 47 (15) ◽  
pp. 1843-1851 ◽  
Author(s):  
M Evren Toygar ◽  
Zeki Kıral ◽  
Onur Sayman ◽  
Yusuf Arman ◽  
Mustafa Özen
Keyword(s):  
Free Vibration ◽  
Interface Crack ◽  
Composite Beam ◽  
Vibration Response ◽  
Sandwich Composite ◽  
Lateral Buckling ◽  
Buckling Behavior ◽  
Free Vibration Response

Vibration and Buckling Response of Width Tapered Laminated Composite Beams Using Ritz Method for Rotorcraft Blade

2010 ◽  
Author(s):  
Vijay Kumar Badagi ◽  
Rajamohan Ganesan
Keyword(s):  
Free Vibration ◽  
Boundary Conditions ◽  
Composite Beam ◽  
Ritz Method ◽  
Compressive Force ◽  
Laminated Composite ◽  
Free Vibration Analysis ◽  
Composite Beams ◽  
Buckling Analysis ◽  
Laminated Composite Beam

In this study, Symmetric cross-ply linear width tapered laminated composite beam is considered. Due to the variety of width tapered composite beams and the complexity of the analysis, no closed-form analytical solution is available at present regarding free vibration response. Therefore in the present work, the Ritz method is used for the free vibration analysis with considering uni-axial compressive and tensile force. The elastic stiffness of the width tapered composite beam is analyzed compared to uniform laminated composite beam. Free vibration which is significant to investigate the dynamic characteristics of the structure using Ritz method with and without effect of axial tensile and compressive force is analyzed. The analysis is based on 1D laminated beam theory. The governing equations are obtained by means of Hamilton’s principle. Tsai-Wu failure analysis is considered to find the tensile and compressive failure force for each ply in the laminate. Buckling analysis is conducted to find the critical buckling force for the laminated composite beam-column subjected to different sets of boundary conditions. Simply supported, Clamped-free, Clamped-Clamped edge boundary conditions are considered. A detailed parametric study is conducted on tapered composite beams made of NCT/301 graphite-epoxy to investigate the effects of the ratio of the width of the thick section to thin section, boundary conditions, effects of axial and compressive force on natural frequency and buckling analysis.

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