The elastic buckling and static bending of FG porous beams with various boundary conditions and two different porosity distributions have been investigated. Theoretical formulations are within the framework of Timoshenko beam theory. Ritz method is employed to obtain the critical buckling load, transverse bending deflection, and normal bending stress. The effects of porosity coefficient and slenderness ratio on the critical buckling load, maximum deflection and associated stress distribution are discussed. Numerical results show that:
(1)
An increase in the porosity coefficient and slenderness ratio leads to lower critical buckling loads of functionally graded porous beams.
(2)
The maximum deflections for the porous beams increase with an increase in the porosity coefficient and slenderness ratio.
(3)
The through-thickness normal stress distribution changes from linear to nonlinear with the increasing porosity coefficient, and varied more dramatically with the increasing slenderness ratio.
(4)
The porosity distribution has a significant influence on the buckling and static bending behavior of the beam. Compared with the unsymmetric distribution pattern, the symmetric distribution offers better buckling capacity and improved bending resistance.