Investigating the Effect of Fiber and Core Type on the Bending and Buckling Behavior of Bio-Based/Green Sandwich Structures

Green sandwich structures have received widespread attention due to their unique features in terms ofmechanical properties and degradability. In these structures, the selection of the core material is very crucial due to theresistance of shear and buckling loads. The skin type is also important because of the protection of the core, as well asbearing the bending and impact loads. In this paper, the bending and buckling behavior of bio-based/green sandwichstructures was experimentally studied. The whole sandwich structures were manufactured using bio-based materialsincluding Polylactic Acid (PLA) as the matrix, basalt, and hemp fibers as reinforcements as well as balsa andagglomerated cork as core materials. In the next stage, different types of sandwich structures with various skins andcores were subjected to bending and axial compressive loading and the effect of the core and skin type on the structuralbehavior of these structures was evaluated.