Integral composite bushing system and method
View Patent ↗A composite bearing comprising a densified portion, wherein a hole location is positioned at the approximate center of said densified portion; and a plurality of filament tendrils, wherein the plurality of filament tendrils are configured to wrap around the hole location to create a “U” shape.
1. A composite aircraft structure comprising:
an aircraft body portion having a first density;
a disk-shaped densified portion comprising ceramic, metal, high-strength plastic, or a combination thereof,
wherein the disk-shaped densified portion includes a hole positioned at an approximate center of said disk-shaped densified portion,
wherein the densified portion has a density that is greater than said first density and is configured to resist a load imparted via said hole; and
a plurality of filament tendrils,
wherein the plurality of filament tendrils is configured to wrap around at least a portion of said hole to form a form a “U” shape,
wherein at least one of said plurality of filament tendrils comprises a carbon fiber material, a para-aramid synthetic fiber material, or a fiberglass material,
wherein said plurality of filament tendrils is configured to direct stress away from said hole and into the aircraft body portion.
2. The composite aircraft structure of claim 1 , wherein said densified portion's diameter is approximately 1.5 to 3 times said hole's diameter.
3. A composite bearing for use in a composite structure, the composite bearing comprising:
a densified portion to resist a load imparted upon the composite bearing at a hole positioned at an approximate center of said densified portion; and
a plurality of filament tendrils encircling at least a portion of said hole,
wherein the plurality of filament tendrils are configured to direct stress away from the hole and into the composite structure.
4. The composite bearing of claim 3 , wherein the plurality of filament tendrils form a “U” shape around said at least a portion of said hole.
5. The composite bearing of claim 3 , wherein the composite bearing is disk-shaped.
6. The composite bearing of claim 3 , wherein at least one of said plurality of filament tendrils comprises a carbon fiber material.
7. The composite bearing of claim 3 , wherein at least one of said plurality of filament tendrils comprises a para-aramid synthetic fiber material.
8. The composite bearing of claim 3 , wherein at least one of said plurality of filament tendrils comprises a fiberglass material.
9. The composite bearing of claim 3 , wherein said densified portion's diameter is approximately 1.5 to 3 times said hole's diameter.
10. The composite bearing of claim 3 , wherein said densified portion comprises ceramic, metal, high-strength plastic, or a combination thereof.
11. A composite structure comprising:
a composite material body portion;
a densified portion to resist a load imparted via a hole positioned at an approximate center of said densified portion; and
a plurality of filament tendrils wrapped around at least a portion of said hole to direct stress away from said hole and into the composite material body portion, wherein at least a portion of each of said plurality of filament tendrils is embedded within said composite material body portion.
12. The composite structure of claim 11 , wherein the plurality of filament tendrils form a “U” shape around said at least a portion of said hole.
13. The composite structure of claim 11 , wherein the densified portion is disk-shaped.
14. The composite structure of claim 11 , wherein at least one of said plurality of filament tendrils comprises a carbon fiber material.
15. The composite structure of claim 11 , wherein at least one of said plurality of filament tendrils comprises a para-aramid synthetic fiber material.
16. The composite structure of claim 11 , wherein at least one of said plurality of filament tendrils comprises a fiberglass material.
17. The composite structure of claim 11 , wherein said densified portion's diameter is approximately 1.5 to 3 times said hole's diameter.
18. The composite structure of claim 11 , wherein said densified portion comprises ceramic, metal, high-strength plastic, or a combination thereof.
19. The composite bearing of claim 3 , wherein the densified portion is embedded within the composite structure.
20. The composite structure of claim 11 , wherein the densified portion is embedded within the composite material body portion.