Effect of Structure on the Mechanical Behaviors of Three-Dimensional Spacer Fabric Composites |
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Authors: | Min Li Shaokai Wang Zuoguang Zhang Boming Wu |
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Affiliation: | (1) Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing, 100191, China;(2) Changzhou Bolong Three Dimensional Composites Co., Ltd, Changzhou, Jiangsu, 213115, People’s Republic of China |
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Abstract: | Three-dimensional (3-D) spacer fabric composite is a newly developed sandwich structure, the reinforcement of which is integrally
woven by advanced textile technique. Two facesheets of 3-D spacer fabric are connected by continuous fibers, named pile in
the core, providing excellent properties like outstanding integrity, debonding resistance, light weight, good designability
and so on. Usually the 3-D spacer fabric composite without extra reinforcement is a kind of core material. In comparison with
the facesheet reinforced spacer fabric composite, here the composite without additional weaves is called mono-spacer fabric
composite. In this paper, two kinds of mono-spacer fabric composites with integrated hollow cores have been developed, one
with 8-shaped piles and the other with corrugated piles. The mechanical characteristics and the damage modes of these mono-spacer
fabric composites under different load conditions have been investigated. Besides, effects of pile height, pile distribution
density and pile structure on the composites mechanical performances were analyzed. It is shown that the mechanical performances
of mono-spacer fabric composites can be widely adapted to the respective requirements through the choice of the structural
factors. |
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Keywords: | Composites Spacer fabric Mechanical performance Pile |
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