Comparison of the drop weight impact performance of sandwich panels with aluminium honeycomb and titanium alloy micro lattice cores

R. Hasan, R. Mines, E. Shen, S. Tsopanos, W. Cantwell, W. Brooks, C. Sutcliffe

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

24 Scopus citations

Abstract

This paper is a study of the drop weight impact behaviour of small sandwich panels of carbon epoxy skins with aluminium honeycomb and titanium alloy micro-lattice cores. A series of experimental tests have shown that the specific impactor penetration behaviours are similar for both cores. The reasons for this are a result of the detailed deformation and rupture behaviour of the two types of core. The deformation and rupture mechanisms of honeycomb and micro-lattice structures will be discussed in general terms, and these observations will be used to inform discussion of actual deformation and rupture in the panel tests. In this way, micro energy absorbing mechanisms will be related to panel performance, and conclusions on the way forward for improved penetration performance using other core materials and geometries will be identified.

Original languageBritish English
Title of host publicationAdvances in Experimental Mechanics VII
Pages413-418
Number of pages6
DOIs
StatePublished - 2010
Event7th International Conference on Advances in Experimental Mechanics - Liverpool, United Kingdom
Duration: 7 Sep 20109 Sep 2010

Publication series

NameApplied Mechanics and Materials
Volume24-25
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference7th International Conference on Advances in Experimental Mechanics
Country/TerritoryUnited Kingdom
CityLiverpool
Period7/09/109/09/10

Keywords

  • Honeycomb
  • Impact
  • Micro-lattice
  • Sandwich

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