عنوان مقاله [English]
Modern materials such as, laminated composites, functionally graded, etc., are widely used in different fields of engineering. In functionally graded materials, material properties may be varied in thickness direction from steel in one side to ceramic on the other side, which gives high temperature resistance, increases buckling temperature of structures and better performance of the structures subject to high temperature change. In the presented study thermal buckling of moderately thick functionally graded beams is investigated using differential quadrature method. The governing equations are derived based on the first-order shear deformation theory (Timoshenko theory) and plane stress assumption. Differential quadrature method is used to discretize the governing equation and the related boundary conditions. Convergence rate and accuracy of the differential quadrature method, influence of boundary conditions, thickness to length ratio and the other parameters are studied.