Homogenization of cellular sandwich panels

Arthur Lebée (1) , Karam Sab (1)

1 msa - Matériaux et Structures Architecturés

The Bending-Gradient plate theory originally presented in Lebée and Sab (International Journal of Solids and Structures 48 (2011) 2878-2888) is applied to cellular sandwich panels. This theory is the extension of the Reissner-Mindlin theory to heterogeneous plates. Its application clarifies common assumptions made in sandwich theory. It also enables to define a direct homogenization scheme for deriving the shear forces stiffness of sandwich panels. Finally, the conventional bounds used for estimating sandwich panels stiffnesses are justified.

Domaines: Mécanique des structures [physics.class-ph]; Mécanique des structures [physics.class-ph]

Arthur Lebée, Karam Sab. Homogenization of cellular sandwich panels. Comptes Rendus Mécanique, 2012, 340 (4-5), pp.320--337. ⟨10.1016/j.crme.2012.02.014⟩. ⟨hal-00794221⟩