Numerical Analysis of Composite Sinusoidal Honeycomb Structures by using FEM

Many industries use honeycomb composites extensively, including the aerospace, automotive, furniture, packaging, and logistic sectors. A specific type of composite material known as a honeycomb sandwich is created by joining two stiff but thin skins to a lightweight but dense core. The sandwich composite strong bending stiffness and overall low density are made possible by the core material's larger thickness despite its typical low strength. The Sandwich panel's strength is influenced by the panel's size, the material chosen for the faceplates, and the density of the honeycomb cells inside. This study investigates the critical buckling stresses numerically for different core densities and materials of honeycomb composite panels. In this investigation, the faceplate material is constant while the core material varies. It can be observed that when core density increases, so do the specimens buckling strength. Analytical investigations on honeycomb sandwich panels are used to examine the behavior of sinusoidal and hexagonal honeycomb sandwich panels under impact loads. LS-DYNA was used for analysis, and HYPER-MESH was used for modeling.