Geometrically nonlinear analysis of sandwich composite beams reinforced by agglomeration carbon nanotubes

In this work, geometrically nonlinear behavior of sandwich composite beams reinforced by carbon nanotubes is studied, taking into account the influence agglomeration (CNTs). The core homogeneous while two face sheets are made CNT with effective material properties being estimated Eshelby-Mori-Tanaka approach. A first-order shear deformable beam element formulated in context total Lagrange formulation and used to construct discretized equilibrium equation. Newton-Raphson based iterative procedure conjunction arc-length method trace paths beams. Detail parametric studies carried out illustrate CNTs agglomeration, amount volume fraction as well thicknesses on structure.