Fluted-core sandwich structures, consisting of fiber-reinforced plastics, are frequently utilized in the aerospace industry owing to their excellent strength-to-weight ratio. However, thin-walled structures prone local buckling, which reduces load-bearing capacity and eventually leads material failure. The current study presents analytical models for predicting buckling fluted-core panels subje...

Abstract Additive manufacturing enables the fabrication of strut-based lattices that consist periodic representative volume elements (RVE) and can be used as cores in sandwich panels. Due to design freedom provided by additive manufacturing, lattice strut diameter may vary through lattice. Thus, distribution adapted stress variation core achieve an efficient avoid oversizing core. Such grading ...