Manufacturing seamless three-dimensional woven preforms with complex shapes based on a new weaving technology.

Area of Science:

• Materials Science
• Textile Engineering
• Composite Manufacturing

Background:

• Traditional 3D weaving methods face limitations in producing complex, continuous structures efficiently.
• Developing advanced manufacturing techniques is crucial for high-performance textile-reinforced composites.

Purpose of the Study:

• To introduce and evaluate a new weaving technology for manufacturing diverse 3D woven structures.
• To investigate the structural integrity and properties of resulting textile-reinforced composites.
• To establish design rules for creating complex 3D woven geometries.

Main Methods:

• Fabrication of three representative 3D woven preforms using a modified z-binder interlacement system.
• Impregnation of preforms with epoxy resin to create textile-reinforced composites.
• Analysis using micro-CT, tensile, and bending tests to assess structural effects of z-binder interlacing.

Main Results:

• Demonstrated effective, continuous, efficient, and rapid manufacturing of various 3D woven structures.
• Established a design rule for seamless creation of complex 3D woven structures with non-uniform heights.
• Confirmed structural integrity of complex-shaped 3D woven preforms, including boxes, bowls, and pyramids.

Conclusions:

• The modified z-binder interlacement system offers a viable technology for producing complex 3D woven structures.
• The established design rules facilitate the fabrication of intricate composite shapes with high structural integrity.
• This advancement supports the development of novel applications for 3D woven textile-reinforced composites.