Composite article comprising particles and a method of forming a composite article

摘要

A composite article having a longitudinal direction and a transversal direction. The article includes a stack of plies wherein one ply is a bottom ply and one ply is a top ply. Most or all of the plies include fibers. A plurality of plies have fibers substantially in an orthogonal direction and substantially in a same direction as the longitudinally direction of the article. The bottom ply and the top ply have fibers in a substantially orthogonal direction to the longitudinal direction of the article. At least one ply has the fibers substantially in the same direction as the longitudinal direction of the article. At least one of the plies having fibers substantially in the longitudinal direction includes particles selected from the group of thermoplastic tougheners, nano particles, micro particles, elastic particles, elastomer particles and polymer particles or a combination. Also a method of forming an article on a tool.

主权项

1. A composite article having a longitudinal direction and a transversal transverse direction, the article comprising:
a stack of plies wherein one ply is a bottom ply and one ply is a top ply, most of the plies comprise fibers, a plurality of plies having fibers substantially in a direction orthogonal to the longitudinal direction of the article and plies having fibers substantially in a same direction as the longitudinal direction of the article, wherein a bottom ply and a top ply have fibers substantially in the orthogonal direction to the longitudinal direction of the article, at least one ply has the fibers substantially in a same direction as the longitudinal direction of the article, and at least one ply having fibers substantially diagonal to the longitudinal direction of the article, wherein the at least one ply having fibers substantially diagonal to the longitudinal direction of the article is arranged next to another ply having fibers substantially diagonal to the longitudinal direction of the article or between plies having fibers substantially orthogonal to the longitudinal direction of the article, wherein at least one of the at least one ply having fibers substantially in the longitudinal direction of the article and at least one of the at least one ply having the fibers substantially diagonal to the longitudinal direction of the article comprise particles, the particles including at least one member selected from the group of thermoplastic tougheners, nano particles, micro particles, elastic particles, elastomer particles and polymer particles, wherein the particles comprise carbon, ceramic material, organic material, or glass, and wherein at least one or more of the plies do not include particles.