J Mater Sci Technol ›› 2009, Vol. 25 ›› Issue (04): 547-550.

• Articles • Previous Articles     Next Articles

Fabrication and Testing of Carbon Fiber Reinforced Truss Core Sandwich Panels

Bing Wang, Linzhi Wu, Li Ma, Qiang Wang, Shanyi Du   

  1. Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, China
  • Received:2008-09-08 Revised:2009-02-27 Online:2009-07-28 Published:2009-10-10
  • Contact: Linzhi Wu
  • Supported by:

    the National Science Foundation of China under grant Nos. 90816024 and 10872059
    the Major State Basic Research Development Program of China (973 Program) under grant No. 2006CB601206
    the Program of Excellent Team in Harbin Institute of Technology
    LM acknowledges the Program for New Century Excellent Talents in University under grant No. NCET-08-0152

Abstract:

Truss core sandwich panels reinforced by carbon fibers were assembled with bonded laminate facesheets and carbon fiber reinforced truss cores. The top and bottom facesheets were interconnected with truss cores. Both ends of the truss cores were embedded into four layers of top and bottom facesheets. The mechanical properties of truss core sandwich panels were then investigated under out-of-plane and in-plane compression loadings to reveal the failure mechanisms of sandwich panels. Experimental results indicated that the mechanical behavior of sandwich structure under in-plane loading is dominated by the buckling and debonding of facesheets.

Key words: Sandwich panel, Truss core, Carbon fiber