Hierarchical multiscale modeling of nanotube reinforced polymer composites

A finite element based hierarchical multiscale modeling scheme is presented and used for the analysis of nanotube reinforced polymer composites. The scheme presented here consists of micro and macroscale boundary value problems which are linked together using a computational homogenization scheme. The macroscale problem is a nonlinear finite element based one without any assumption on the material constitutive response. Using different RVE's representing different volume fraction of aligned nanotubes, the effect of the nanotube volume fraction on the effective elastic modulus of the nanocomposite is studied. The results are compared with the micromechanical Halphin- Tsi equation, molecular dynamics simulations and other available results

کلیدواژه ها:

Multiscale modeling ، finite element method ، carbon nanotubes ، nanocomposites