Composite vehicle body
A vehicle body may have an internal skeleton, and a skin fabricated in-situ over the internal skeleton. The skin may include a matrix material, and a plurality of continuous fibers encased within the matrix material. The plurality of continuous fibers may include at least one electrically conductive wire interwoven with others of the plurality of continuous fibers. The at least one electrically conductive wire may be configured to function as at least one of a heater and a strain gauge.
1. A vehicle body, comprising:
an internal skeleton; and
a skin fabricated in-situ over the internal skeleton, the skin including:
a matrix material; and
a plurality of continuous fibers encased within the matrix material, wherein the plurality of continuous fibers includes at least one electrically conductive wire interwoven with others of the plurality of continuous fibers and configured to function as at least one of a heater and a strain gauge,
wherein the matrix material includes multiple resins deposited at strategic locations along a length of the plurality of continuous fibers in the skin.
2. The vehicle body of claim 1 , wherein the plurality of continuous fibers includes at least one shape memory fiber interwoven with others of the plurality of continuous fibers and configured to cause flexing of the vehicle body when energized.
3. The vehicle body of claim 1 , wherein the plurality of continuous fibers includes at least one fiber optic interwoven with others of the plurality of continuous fibers and configured to generate an optical feedback signal during flexing of the vehicle body.
4. The vehicle body of claim 1 , wherein the multiple resins include an electrically insulating resin and a strength-enhancing layer.
5. The vehicle body of claim 1 , wherein:
the skeleton forms a wing shape; and
the multiple resins include:
a flexible resin at a trailing edge of the wing shape; and
a stiffer resin used away from the trailing edge.
6. The vehicle body of claim 1 , wherein:
the skeleton forms a wing shape; and
the multiple resins include:
a pyrolized resin at a leading edge of the wing shape; and
an acrylated resin used away from the leading edge.
7. The vehicle body of claim 1 , wherein:
the internal skeleton forms a wing shape and a fuselage shape; and
the plurality of continuous fibers in the skin on the wing shape extend into the skin on the fuselage shape.
8. The vehicle body of claim 7 , wherein a density of the plurality of continuous fibers varies along a length of the wing shape.
9. The vehicle body of claim 1 , wherein at least some of the plurality of continuous fibers of the internal skeleton extend into and form a portion of the skin.
10. The vehicle body of claim 1 , wherein the plurality of continuous fibers includes:
a first plurality of continuous fibers arranged in layers generally parallel to a surface of the vehicle body; and
a second plurality of continuous fibers that extend normal to the surface to interlock the layers.
11. The vehicle body of claim 1 , wherein the matrix material includes a UV-cured resin.
12. A vehicle body, comprising:
an internal skeleton; and
a skin formed over the internal skeleton, the skin including:
a matrix material;
a plurality of continuous structural fibers encased within the matrix material; and
at least one of an electrically conductive wire, a shape memory fiber, and a fiber optic interwoven with the plurality of continuous structural fibers;
wherein at least some of the plurality of continuous structural fibers of the skin extend into and form a portion of the internal skeleton.
13. The vehicle body of claim 12 , wherein the matrix material includes multiple resins deposited at strategic locations in the skin.
14. The vehicle body of claim 13 , wherein the multiple resins include an electrically insulating resin and a strength-enhancing layer.
15. The vehicle body of claim 13 , wherein:
the skeleton forms a wing shape; and
the multiple resins include:
a flexible resin at a trailing edge of the wing shape; and
a stiffer resin used away from the trailing edge.
16. The vehicle body of claim 13 , wherein:
the skeleton forms a wing shape; and
the multiple resins include:
a pyrolized resin at a leading edge of the wing shape; and
an acrylated resin used away from the leading edge.
17. The vehicle body of claim 12 , wherein the plurality of continuous structural fibers includes:
a first plurality of continuous structural fibers arranged in layers generally parallel to a surface of the vehicle body; and
a second plurality of continuous structural fibers that extend normal to the surface to interlock the layers.
18. A vehicle body, comprising:
an internal skeleton; and
a skin chemically bonded to the internal skeleton, the skin including:
a matrix material; and
a plurality of continuous fibers encased within the matrix material, wherein the plurality of continuous fibers includes a plurality of structural fibers that extend into and form a portion of the internal skeleton and at least one functional fiber interwoven with the plurality of structural fibers.
19. The vehicle body of claim 18 , wherein the at least one functional fiber is configured to at least one of heat the skin, detect strain of the skin and cause flexing of the skin when energized.