Transverse shear stiffness of a chevron folded core used in sandwich construction

Arthur Lebée (1) , Karam Sab (1)

1 msa - Matériaux et Structures Architecturés

Using Kelsey et al. (1958) unit load method, upper and lower bounds for the effective transverse shear moduli of a chevron folded core used in sandwich construction are analytically derived and compared to finite element computations. We found that these bounds are generally loose and that in some cases chevron folded cores are 40% stiffer than honeycomb-like cores.

Mots clés: Chevron pattern; Effective transverse shear modulus; Folded cores; Sandwich panels

Domaines: Sciences de l'ingénieur [physics]; Mécanique [physics.med-ph]; Mécanique des structures [physics.class-ph]; Physique [physics]; Mécanique [physics]; Mécanique des structures [physics.class-ph]

Arthur Lebée, Karam Sab. Transverse shear stiffness of a chevron folded core used in sandwich construction. International Journal of Solids and Structures, 2010, 47 (18-19), pp.2620--2629. ⟨10.1016/j.ijsolstr.2010.05.024⟩. ⟨hal-00814766⟩