Weaving design

[ame=“http://www.youtube.com/watch?v=Ulay-1W7Gks”]3D Weave - YouTube[/ame]

[ame=“http://www.youtube.com/watch?v=v7hxL9Uxez0”]3D Weave & Cross-Section - YouTube[/ame]

[ame=“http://www.youtube.com/watch?v=G3G1_KgfbzA”]Basic understanding of Fabric Design - YouTube[/ame]

[ame=“http://www.youtube.com/watch?v=jBxIxmCoAvc”]Computer Simulation of Weaving Preperation - YouTube[/ame]

[ame=“http://www.youtube.com/watch?v=s0W0iDj7_hc”]Type of Weft Insertions in weaving loom - YouTube[/ame]

[ame=“http://www.youtube.com/watch?v=fE00O8akyGw”]Crepe Weave, Cordroi Weave and Velvet Weaves - YouTube[/ame]

[ame=“http://www.youtube.com/watch?v=tXFAsKiphrg”]SURE 2011: Hybrid 3D Textile Woven Composites - YouTube[/ame]

Great videos. Thanks. Nothing beats a visual presentation for conveying the essence of a concept.

Just discovered that one is given a choice of fonts when posting at Composites Central. What a great idea :slight_smile:

Hmmm… After watching those videos, I don’t think I’ll ever look at fabric the same way again. I mean we all wear fabrics of every kind of construction and rarely if ever (unless you’re a weaver I suppose) do we consider the complexity behind them.

Curiously, a thought crossed my mind while watching one the looms in action. The thought was that a carbon fiber fabric plain weave might actually be more rigid (in a composite) in the weft direction due to the way the warp yarns are bent over the weft yarns. The weft yarns *might *stay straighter by virtue of the process. Then again, I suppose it depends on how the loom is set up.

That bending is called “crimp”, and loom tension is critical to get an even fabric. Assume most weavers have that sorted.

If you are worried about crimp, go for unidirectionals, or for multiaxials (also called NCF, non crimp fabrics)

The Warp fibres stay straighter as they have the higher tension during the weaving process. Weft fibres therefore typically have the much lower stiffness.