Buckling of sandwich panels with a flexible core—high-order theory

On interactive buckling in a sandwich structure

“…

This work revisits an interactive buckling model for sandwich beams proposed relatively recently by Hunt and Wadee (Proc R Soc Lond A 454:1197-1216, 1998). Our asymptotic investigations reveal an interesting resonant behaviour which is shown to lie at the origin of the corresponding localised deformations reported in the literature.

…”

“…Their model accounts for continuity conditions at the interface between the faces and the core, but its numerical analysis is generally expensive. A number of authors have produced improvements to that early formulation, see [5][6][7][8], for example; there are also many other interesting studies which focus on complementary aspects (e.g., [9][10][11] and references therein).…”

Buckling optimisation of sandwich cylindrical panels

“…Zig-zag model was considered for the thick faces and the RayleighRitz method was used for calculating the buckling loads. Frostig in 1998 formulated the linear and nonlinear buckling behaviour of sandwich plates [5]. The plates considered were made of symmetrically laminated face sheets and isotropic foams or especially orthotropic honeycomb cores.…”

Buckling analysis of laminated sandwich beam with soft core

“…Song and Waas [44] presented a higher order theory for the buckling and vibration analysis of composite beams and the accuracy of HSDT was demonstrated compared to 1-D Euler-Bernoulli, 2-D classical elasticity theory and Timoshenko beam theory. Frostig [23] obtained the general as well as local buckling loads for sandwich panels consisting of two faces and a soft orthotropic core using HSDT. Karama et.al [27] presented a multilayered laminated composite model by introducing a sine function as a transverse shear stress function where a FE based software package Abaqus was used to check the efficiency of the model.…”