Hollow woven composites are widely used as matrix in aeronautics and vehicles. This paper develops a new ‘π’ shape of 3D woven hollow composite to optimize its bending property. The new structure composite is woven with overlapping warp integral panel enhancing method. In order to weave it out, a new structure of heald has been innovated. Three specimens with different thickness of panels are manufactured by this method. The anti-bending performances of the composites are carried out by four-point bending tests. The experimental results show that with an increase of the number of the composites layers, the Young’s modulus and failure loads of the composites are increased significantly.
Li MinWang ShaokaiZhang Zuoguang. Effect of structure on the mechanical behaviors of three-dimensional spacer fabric composites. Appl Compos Mater2009; 16(1): 1–14.
5.
Pamuk GulsahCeken FatmaIcten Bulent Murat. Mechanical properties of spacer fabric-reinforced composites knitted from glass yarn. J Compos Mater2011; 45(17): 1741–1748.
6.
Jin LiminHu HongSun Baozhong. A simplified microstructure model of bi-axial warp-knitted composite for ballistic impact simulation. Compos Part B-Eng2010; 41(5): 337–353.
GantoisKMorrisAJ. The multi-disciplinary design of a large-scale civil aircraft wing taking account of manufacturing costs. Struct Multidisciplinary Optim2004; 28(1): 31–46.
12.
American Society of Testing and Materials. ASTM standard test method for flexural properties of sandwich constructions, West Conshohocken, PA: ASTM International, 2000.
