Abstract
In this paper, the node-based smoothed finite element method is developed for three-node triangular plate elements using the mixed interpolation of tensorial components (MITC) technique to remove the shear locking. The C 0-type continuous plate elements represent the higher-order shear deformation theory of laminated composite plates by adding two degree of freedoms related to derivatives of deflection. Based on the MITC3 technique for three-node triangular degenerated shell elements, an explicit formulation of gradients of the transverse shear strains is derived. The constant strain fields within the C 0-type continuous plate elements are averaged over node-based domains defined by connecting the centroids and edges’ middle points of elements having common nodes. The proposed elements, namely NS-MITC3, show good accuracy and convergence as compared to other plate elements when employed to analyze laminated composite plates.
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