An improved higher order zigzag theory for the static analysis of laminated sandwich plate with soft core

By M. K. Pandit, Abdul H. Sheikh, B. N. Singh. 2008

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Isogeometric analysis of laminated composite and sandwich plates using a layerwise deformation theory (2013, unknown): “10 FEMQ9-HOZT [37] 2.”
A generalized global-local high-order theory for bending and vibration analyses of sandwich plates subjected to thermo-mechanical loads (2010, background): “[44] also proposed an improved cubic zigzag theory for static analysis of laminated sandwich plates with transversely compressible cores.”
Analysis of laminated composite plates using wavelet finite element method and higher-order plate theory (2015, background): “Recently, Singh has developed zigzag theory [31,32] and a new inverse hyperbolic shear deformation theory [33] for free vibration analysis of laminated composite and sandwich plates.”
New Nonpolynomial Shear-Deformation Theories for Structural Behavior of Laminated-Composite and Sandwich Plates (2013, unknown): “[40,41], and Vijayakumar [42].”
Isogeometric finite element analysis of composite sandwich plates using a higher order shear deformation theory (2013, methodology): “The extension of our formulation to other theories such as 3D elasticity [4], higher order refined plate [12], layerwise and zigzag plate [28] models and so on is straightforward.”