Displacement and stress response of laminated beams and stiffened plates using a high-order element

Analytical solution to bending of stiffened and continuous antisymmetric laminates

“…x and Σ 1 y ) of antisymmetric cross-ply square plates having three edges simply supported and the fourth edge (x = a) beam supported (a/h = 1000, E 1 = 132.38 GPa, E 2 = 10.76 GPa, G 12 = G 13 = 5.65 GPa, G 23 = 3.61 GPa, ν 12 …”

“…Natarajan et al [11] studied the static bending and free vibration of cross-ply laminated composite plates using sinusoidal deformation theory which combined isogeometric approach and unified formulation. Mukherjee and Menghani [12] studied aspects of displacements and stresses in laminated composite beams and stiffened plates by using a high-order theory with quadratic isoparametric shape functions. Sadek and Tawfik [13] presented a refined higher-order displacement model for the study of the behavior of concentrically and eccentrically stiffened laminated plates based on C 0 finite element discretization.…”

Development of a specialised finite element for the analysis of composite structures with ply drop-off

“…The present strategy is to accommodate the discontinuity due to drop-o within the element without any alteration of the ®nite element mesh. The present study is inspired by the research reports on stiened plates where the stiener can be anywhere within the plate element [13,14]. A similar approach has been adopted in the development of the element for a 2-D analysis of ply drop-o.…”

Thermal-elastic analysis of laminated plates based on the incompatible generalized partial mixed method

“…It is simple in principle, and the error analysis theory is relatively well developed. High-order and incompatible displacement elements are also derived to consider quadratic variation in the transverse shearing strain through the thickness of the element [18] . The precision of the results for stress obtained by the displacement method is, however, not as favorable as the results for displacement because stress is the first derivative of displacement.…”