Overall and local buckling of sandwich plates with laminated faceplates, Part I: Analysis

A Sublaminate Generalized Unified Formulation for the analysis of composite structures

“…However, when modeling sandwich structures it is customary to employ different approximations for the faces and the core [9]. Low-order models are usually chosen for the thin faces, such as pure membrane [48], CLT [49][50][51][52] or FSDT [53]. A much larger variety of models has been used to represent the thick and soft core.…”

“…Honeycomb cores are often considered to work in pure transverse shear [49] or in anti-plane stress (zero membrane stiffness) [50]. Several different assumptions have been introduced for modeling the core as a 3D elastic continuum: for instance, the transverse shear strain has been taken to vary linearly [51] or quadratically [52] across the core thickness; and the transverse normal stress has been assumed to be constant [53] or linear [52]. Most of the plate models discussed insofar can be obtained as special cases of the Sublaminate-GUF presented in the following.…”

Benchmark solutions and assessment of variable kinematics models for global and local buckling of sandwich struts

“…This model will be denoted HL in the following and, in comparison to HSAPT, represents the core with a lower-order kinematics but it retains its in-plane stiffness. While all models discussed so far adopt the Euler-Bernoulli-Kirchhoff hypothesis that discards the transverse deformation in the face sheets (CLT model), the DY model proposed by Dawe and Yuan [55] employs the same core kinematics of the HL model but includes a constant transverse shear strain in the face sheets by referring to an FSDT model.…”

Finite element modeling for buckling analysis of hybrid piezoelectric beam under electromechanical loads

“…HSDT). Dawe and Yuan (2001) used a B-spline finite strip method (FSM) for predicting the buckling stresses of rectangular sandwich plates. They represented core as a three-dimensional solid in which the in-plane displacements vary quadratically through the thickness whilst the out-of-plane displacement varies linearly.…”