Analysis of SMA composite laminates using a multiscale modelling technique

The present work deals with the analysis of smart laminates, obtained as stacking sequence of fibrereinforced composite laminae and composite shape memory alloy (SMA) layers. The behaviour of composite SMA (CSMA) laminate is studied developing a full micro–macro approach. In fact, a non-linear 4-node mixed interpolation of tensorial components (MITC4) laminate finite element, based on the firstorder shear deformation theory, is developed. The SMA layer constitutive relationship is determined solving a non-linear homogenization problem at each non-linear iteration of each time step for each integration Gauss point. Some numerical applications are developed in order to investigate the influence of the CSMA on the buckling behaviour of plates and on the transversal displacement control of plates subjected to different loading conditions. Copyright q 2006 John Wiley & Sons, Ltd