Multi-Cycle Fatigue of Composite Three-Layer Plates with Honeycomb Structure Made by Additive FDM Technologies

The multi-cycle fatigue of three-layer plates with honeycomb structure, which was manufactured using additive FDM technologies from polylactide, is considered. Carbon fiber based on the SIGRAPREG C U200-0/NF-E310/30% pre-preg is chosen as a material for the upper and lower covers. Fatigue analysis of three-layer plates with honeycomb structure is based on their vibration tests. To study the fatigue characteristics of honeycomb structures, special samples were made. Fatigue characteristics of structures are studied on three-layer samples using carbon-plastic sheathings. The experiment was accompanied by finite element simulation of fatigue tests in the ANSYS software complex. The fatigue properties of three-layer plates are studied.