Preform and method for reinforcing woven fiber nodes

摘要

Preforms including fiber reinforced nodes for use in fiber reinforced composite structures and methods for making fiber reinforced composite structures. Preforms with woven fabric elements extending radially from a common node include at least one reinforcing fiber interwoven between at least two elements and passing through the node. A method of assembling preform structures using the preforms to provide a structure with reinforced nodes.

主权项

1. A reinforced preform comprising:
a plurality of commonly woven fabric elements edgewise joined and radially extending from a common node, wherein at least one reinforcing fiber from each of the plurality of elements is woven through the node and into at least one other of the plurality of elements; wherein the elements further comprise major surfaces; and wherein at least some of the plurality of elements are arranged in pairs of adjacent elements such that opposite facing adjacent major surfaces are spaced apart a distance and form a void therebetween, and wherein the plurality of elements comprise at least two sets of the elements arranged in pairs, and at least two singular elements.