Transverse shear stiffness of structural core sandwich

Global bending response of composite sandwich plates with corrugated core: Part I: Effect of geometric parameters

“…However, the measured transverse shear stiffnesses were significantly lower than the calculated values based on the analysis in Ref. [18]. They attributed the discrepancy to the delamination damage and change in the core shape that may have occurred during the manufacturing of the corrugated cardboard.…”

“…Nordstand et al [18] analyzed the transverse shear moduli of corrugated core sandwich plates. They observed that the transverse shear modulus normal to the corrugation direction is much smaller and is more sensitive to the corrugation shape than the transverse shear modulus along the corrugation direction.…”

The mechanics of composite corrugated structures: A review with applications in morphing aircraft

“…Among the early works regarding this issue is the work of Nordstrand et al [41] who used curved beam theory to study the shear stiffness of a corrugated cardboard. They presented a theoretical study on how the geometry of the corrugation affects the transverse shear moduli.…”

Structural modeling of sandwich structures with lightweight cellular cores

“…The effective constitutive relations of corrugated core sandwich panels (cardboards), as reviewed by Hohe and Becker [19], have long been a challenging problem [27][28][29]. Since a sandwich panel with corrugated core derives much of its stiffness from the interaction of core and facesheets, this type of sandwich core is usually analyzed in the assembled state by using classical laminate theories.…”