Geometrically nonlinear bending mesh-free analysis of functionally graded porous sandwich beam

In this work, geometrically nonlinear static bending analysis of sandwich beams with a porous core and two skins made functionally graded materials using mesh-free method is presented. The material types the face sheets beam are chosen so that continuity between layers guaranteed. governing equation including geometric nonlinearity established via principle virtual work. This discretized into system algebraic equations by approach, which based on C1 point interpolation polynomial basis functions, then solved direct iterative method. convergence tested to determine sufficient mesh level for analysis. Comparative comprehensive studies performed investigate both correctness influences several important parameters boundary conditions linear deflections beam.