Skeleton castings dynamic load resistance

摘要

Purpose: The article is to show selected results of research in a field of new type of cast spatial compositereinforcements. This article shows skeleton casting case as a particular approach to continuous, spatialcomposite reinforcement.Design/methodology/approach: The research is concerning properties of cast spatial microlattice structurescalled skeleton castings. In this paper results of impact test of skeleton casting with octahedron elementary cellwere shown. The selection of internal topology of skeleton casting was based on numerical simulations of stressdistribution.Findings: The possibility of manufacturing of geometrically complex skeleton castings without use of advancedtechniques was confirmed.Research limitations/implications: With use of computer tomography, analysis of deformation mechanismswas carried out. Different levels of impact energies were usedPractical implications: Spatial skeleton casting with octahedron elementary cell confirmed their usefulness asimpact energy absorbers.Originality/value: The overall aim of presented research was to determine the mechanisms of skeleton castingsdeformation processes. Thanks to CT data next step will be to create accurate numerical model for furthersimulation and design optimization.