Research on the impact resistance optimization design of typical honeycomb structures
ZHENG Hongyu
LIN Zhiyu
Abstract：[Objective]A hierarchical optimization design method for impact resistance of isosceles triangular honeycomb structures was established to provide a reference for lightweight design of spacecraft impact buffering devices.[Methods]Firstly,a numerical simulation model was built using Abaqus software,and the mechanical properties including relative density and plateau stress of isosceles triangular honeycomb structures under in-plane impact were analyzed,with the model reliability verified by comparison with literature results.Secondly,based on the Isight software platform,a multi-objective genetic algorithm was adopted to optimize macroscopic size parameters including cell base length,cell height,and wall thicknesses in different regions,with the objectives of minimizing structural mass and peak load.Then,for the optimal configuration obtained from macroscopic optimization,a symmetric cross-section was selected to establish a plane-strain model,and detailed optimization of the fillet radius at cell junctions was further carried out.Finally,the effectiveness of the hierarchical optimization strategy was evaluated by comparing the reaction force-time histories and deformation modes of honeycomb structures before and after optimization.[Results]The results show that after macroscopic optimization,the structural mass is reduced by 73％(at 5 m/s)and 83％(at 35 m/s)under different impact velocities;after detailed fillet optimization,the peak reaction force is reduced by 31％.
Keywords：Multi-objective optimizationTriangular honeycombIn-plane impactGenetic algorithmPlateau stress
Publication Date：2026-08-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：9( 63-71 )