期刊
EXTREME MECHANICS LETTERS
卷 7, 期 -, 页码 114-120出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.eml.2016.02.012
关键词
Carbon fiber sandwich; Three dimensional grid; Interlocking; Multifunctional
资金
- National Science Foundation of China [11302060, 11572100]
- Natural Scientific Research Innovation Foundation in Harbin Institute of Technology [HIT.NSRIF.2014025]
- NSF-CAREER [CMMI-1149750]
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [1149750] Funding Source: National Science Foundation
Carbon fiber reinforced three dimensional egg and pyramidal honeycomb grids cores with interconnected void spaces were fabricated using an interlocking method. The out-of-plane compression properties, failure modes, and energy absorption capacity of all-composite sandwich panels made of the new 3D grid cores were investigated. The analytical models for predicting the compressive stiffness and strength of both egg and pyramidal honeycomb grids cores were derived. The results showed that the fabricated sandwich panels have higher specific energy absorbing abilities compared to lightweight square honeycombs of same density (10-100 Kg/m(3)). The new core design promises novel applications for lightweight multifunctional structures due to increased flow in the inner spaces of the core construction, embedding of electrical lines, enhanced heat transfer, fuel storage and higher energy absorption compared to traditional cores. (C) 2016 Elsevier Ltd. All rights reserved.
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