A Cosserat multiparticle model for periodically layered materials

In this paper, the Cosserat multiparticle model (CM2) for 3D periodically layered materials is proposed in order to reproduce both size and boundary effects in these materials. This model can handle n-n- phase periodically layered materials with 4n+14n+1 kinematic variables at each 3D geometric point: two in-plane displacements and two rotations per phase plus one common out-of-plane displacement. The model gives excellent agreement with full finite element results for out-of-plane shearing.