Mechanical Behaviour of Honeycomb Sandwich Structures Under Bending

The textbook "Mechanical Behaviour of Honeycomb Sandwich Structures Under Bending" offers a comprehensive investigation of the mechanical properties of sandwich structures with honeycomb cores under bending loads. It presents experimental, numerical, and analytical characterizations necessary for optimizing structural design. The study analyzes how the orientation of the honeycomb core ribs and the thickness of the face sheets affect the bending behavior of these structures. A failure mode diagram is developed to illustrate the dependence of the failure mode on the thickness of the face sheet relative to the core and the orientation of the core ribs. The experimental data align well with theoretical predictions, and a finite element model has been created to validate the experimental and analytical analyses. The results demonstrate the crucial role of core rib orientation in the bending behavior of sandwich beams and indicate that unequal layer count face sheets can provide higher stiffness-to-weight ratios than conventional symmetric sandwich structures.