Effect of Structure on the Mechanical Behaviors of Three-Dimensional Spacer Fabric Composites

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 monospacer 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 monospacer 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.

Compression resilience and impact resistance of fiber‐reinforced sandwich composites

“…A reinforced spacer fabric made of individual surface layers and joined with connecting layers shows improved resilience properties for lightweight applications such as textile-based sandwich preforms. 28 A similar trend of stages is observed in the sandwich composites in Figure 8.…”

“…com] Knife penetration resistance force [Colour figure can be viewed at wileyonlinelibrary.com]and comfort, the protective material must conform to the shape and curvature of the body part being protected. There is no doubt that the knife penetration properties of a protective material of curved shape are different from those of a planar shape, because of the change in boundary conditions during knife penetration 28. Result of ball burst test [Colour figure can be viewed at wileyonlinelibrary.…”

Investigation of Joints in 3d Spacer Fabric Composites

“…(Sun Pui Ng and Yip,2008) The 3D spacer fabrics have super-high specific strength and specific stiffness that additional weaves could strengthen the composite face sheets greatly, and the multi-face sheet structure could improve the properties correlated with the piles effectively. (Wang, et al, 2009).…”

Compressibility Behaviour of Warp Knitted Spacer Fabrics Based on Elastic Curved Bar Theory

“…In his theory, he introduced a relationship between volume and stress for raw wool fibers regardless of their friction, twist and strength of fibres during compressibility [2]. However, few works have been done on modelling of compression behaviour of warp knitted spacer Fabrics [3,4,5].…”