Dynamic compressive response of additively manufactured AlSi10Mg alloy hierarchical honeycomb structures

• DOI: 10.1016/j.compstruct.2018.04.021
• Publication Date: 2018-04-03T13:21:14Z
• Authors: Yuwu Zhang; Tao Liu; Huan Ren; Ian Maskery; Ian Ashcroft
• Keywords: Honeycomb; Honeycomb structure; Relative density

Periodic honeycombs have been used for their high strength, low weight and multifunctionality. The quasi-static dynamic compressive responses of three types additively manufactured AlSi10Mg honeycomb structures, specifically a single-scale two hierarchical with levels hierarchy, respectively, investigated using experimental measurement finite element (FE) simulations. validated FE simulation has employed to investigate the effects relative density key parameters. following failure modes observed both under compression: (1) experienced transition mechanism from local plastic buckling walls damage parent material without increase honeycomb; (2) all failed at different densities. For compression, offer higher peak nominal wall stresses compared ρ¯=0.19; difference is diminished as increases, i.e. can achieve similar when ρ¯⩾0.26. Numerical results suggested better energy absorption capacity than honeycomb. two-scale three-scale achieved which may suggest that structural performance out-of-plane compression not sensitive architecture. This work indicates advantage be utilised develop lightweight components.