Impact behavior of multi-layer carbon skin composite sandwich panels with 3D spacer fabric

Kus A.

MATERIALS TESTING, vol.57, pp.655-662, 2015 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 57
  • Publication Date: 2015
  • Doi Number: 10.3139/120.110761
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.655-662


For this study, the strengths against impact effects of multi-layer composite sandwich panels reinforced by additional lamination structures using 3D spacer fabric have been investigated. To determine the impact strengths of the produced sandwich panels, falling weight tests with a constant impact energy of 15 J were performed on all of the samples, and the loads and absorbed energy were monitored as a function of time. In addition, the damage mechanisms occurring in the structure during impact were examined. Overall, according to the analysis of the damaged surface, the different impacts created a regional penetration area. Furthermore, no deviation in the breakdown of the surface texture was observed in the regions outside of the penetration area.