integrally woven three-dimensional preform and method for forming an integrally woven three-dimensional preform

摘要

woven backing, fully woven three-dimensional preform and method for forming an integrally woven three-dimensional preform. The present invention relates to an integrally woven three-dimensional preform with two-way reinforcement elements constructed from a woven base cloth (8) having a first cloth, a second cloth and a third cloth (10, 12, 14). a plurality of yarns are intertwined over a region between the first cloth (10) and the second cloth (12) such that the first cloth is foldable with respect to the second cloth. an additional plurality of yarns are intertwined over a region between the second cloth (12) and the third cloth (14) such that the third cloth is foldable with respect to the second cloth. once the woven base cloth is folded, the integrally woven three-dimensional preform with reinforcing elements in two directions is formed.