摘要
The mechanical performance of an all-composite pyramidal lattice truss core sandwich structure was investigated both theoretically and experimentally.Sandwich structures were fabricated with a hot compression molding method using carbon fiber reinforced composite T700/3234.The out-of-plane compression and shear tests were conducted.Experimental results showed that the all-composite pyramidal lattice truss core sandwich structures were more weight efficient than other metallic lattice truss core sandwich structures.Failure modes revealed that node rupture dominated the mechanical behavior of sandwich structures.
基金
supported by the National Natural Science Foundation of China under Grant Nos.90816024 and 10872059
the Major State Basic Research Development Program of China under Grant No. 2011CB610303
the Fundamental Research Funds for the central Universities grant No. HIT. NSRIF. 2010069
the Program of Excellent Team in Harbin Institute of Technology
the Program for New Century Excellent Talents in University under Grant No.NCET-08-0152
