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Coupled Systems Mechanics
  Volume 8, Number 5, October 2019 , pages 459-471

Hygro-thermal post-buckling analysis of a functionally graded beam
Seref D. Akbas

    This paper presents post-buckling analysis of a functionally graded beam under hygro-thermal effect. The material properties of the beam change though height axis with a power-law function. In the nonlinear kinematics of the post-buckling problem, the total Lagrangian approach is used. In the solution of the problem, the finite element method is used within plane solid continua. In the nonlinear solution, the Newton-Raphson method is used with incremental displacements. Comparison studies are performed. In the numerical results, the effects of the material distribution, the geometry parameters, the temperature and the moisture changes on the post-buckling responses of the functionally graded beam are presented and discussed.
Key Words
    functionally graded beam; hygro-thermal effect; post-buckling analysis; total Lagrangian; finite element method
Seref D. Akbas: Department of Civil Engineering, Bursa Technical University, Yildirim Campus, Yildirim, Bursa 16330, Turkey

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