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  Volume 8, Number 1, January 2023 , pages 61-76

Effect of load eccentricity on buckling behavior of FRP composite columns with open and closed cross sections
M Kasiviswanathan and M Anbarasu

    Fiber reinforced polymer (FRP) columns are increasingly being used in various engineering fields due to its high strength to weight ratio and corrosion resistance. Being a thin-walled structure, their designs are often governed by buckling. Buckling strength depends on state of stress of elements which is greatly influence by stacking sequence and various inaccuracies such as geometric imperfections and imperfections due to eccentricity of compressive load and non-uniform boundary conditions. In the present work, influence of load eccentricity on buckling strength of FRP column has been investigated by conducting parametric study. Numerical analyses were carried out by using finite element software ABAQUS. The finite element (FE) model was validated using experimental results from the literature, which demonstrated good agreement in terms of failure loads and deformed shapes. The influence of load eccentricity on buckling behavior is discussed with the help of developed graphs.
Key Words
    buckling; eccentric load; finite element analysis; FRP laminate; stability
M Kasiviswanathan: Department of Civil Engineering, Sona College of Technology, Salem 636005, India

M Anbarasu: Department of Civil Engineering, Government College of Engineering, Salem 636011, India

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