| 摘要 |
<p>An article such as a fan blade of a turbofan engine comprises a core 2 made up of components 4, 6 at least some of which comprise packs of rods 8 embedded in a resin matrix material. The rods 8 extend in the span-wise direction of the blade to resist centrifugal forces imposed on the blade during operation. The core 2 is encased in a skin formed from preforms 16, 18, which may comprise fabric reinforcements.</p> |
