Efficient simulation of low-velocity impacts on composite sandwich panels
Computers and Structures
Evaluation of two finite element formulations for a rapid 3D stress analysis of sandwich structures
Computers and Structures
Harmonic response computation of viscoelastic multilayered structures using a ZPST shell element
Computers and Structures
Composite beam finite element based on the Proper Generalized Decomposition
Computers and Structures
Harmonic response computation of poroelastic multilayered structures using ZPST shell elements
Computers and Structures
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For analysing deformation and stresses of sandwich structures a displacement model is developed using the first-order shear deformation theory (FSDT) for each of the three layers, the core as well as the two face sheets. An enhancement of the Extended 2D Method by Rolfes and Rohwer [Improved transverse shear stresses in composite finite elements based on first order shear deformation theory. Int J Numer Methods Engrg 1997;40:51-60] is used to calculate improved transverse stiffness and stresses. Since the numerical effort is comparatively small and only C^0-continuity is required for the shape functions, the theory is suitable for finite element applications. Within this paper a corresponding three-layered finite element is presented. The performance and the applicability of the proposed element are evaluated by considering numerical examples and by comparing with other two-dimensional models.