Corrugation designs

Patent metadata

Field	Value
Publication number	US-9592853-B2
Application number	US-201414321907-A
Country	US
Kind code	B2
Filing date	Jul 2, 2014
Priority date	Jul 2, 2014
Publication date	Mar 14, 2017
Grant date	Mar 14, 2017

Abstract

Provided is a load-carrying or non-load carrying structural component for a vehicle having improved impact resistance, such as a gas tank protection shield, an underbody shield, a structural panel, an interior floor, a floor pan, a roof, an exterior surface, a storage area, a glove box, a console box, a trunk, a trunk floor, a truck bed, and combinations thereof. The component has a support structure with ridges, each spaced apart from one another at predetermined intervals, to form a corrugated surface capable of load-carrying. The ridges are longitudinally extending, raised ridges and define top and side walls. A plurality of strategically thickened areas is on at least one of the top wall and side walls.

First claim

What is claimed is:

1. An impact resistant component for a vehicle, comprising:
a support structure comprising a plurality of elongate ridges formed therein, wherein each respective elongate ridge comprises a top wall and a pair of side walls, wherein the support structure comprises a composite material, and wherein a ratio of the height of the side walls to the Young's modulus (E) is greater than or equal to about 0.4 mm/GPa to less than or equal to about 1 mm/GPa; and
at least one thickened region for structural support on at least one of the top wall or the side walls, wherein the at least one thickened region corresponds to a corner where the top wall meets a side wall of the pair, so as to form an arcuate brace in the corner and each respective elongate ridge of the plurality is spaced apart from adjacent elongate ridges of the plurality at predetermined intervals to form a corrugated surface capable of load-carrying.

2. The impact resistant component of claim 1 , wherein the plurality of elongate ridges has a generally periodic profile.

3. The impact resistant component of claim 1 , further comprising floor regions between respective elongate ridges of the plurality, wherein the at least one thickened region further corresponds to a portion of the top wall or a portion of the floor regions between the respective elongate ridges, and the at least one thickened region has a maximum thickness near a center of the top wall or near a center of the respective floor region.

4. The impact resistant component of claim 1 , wherein the composite material is a fiber-reinforced composite comprising a polymer and a carbon fiber.

5. The impact resistant component of claim 1 , wherein the at least one thickened region has a thickness of greater than or equal to about 3 millimeters to less than or equal to about 5 millimeters, while a thickness outside of the at least one thickened region is greater than or equal to about 2 millimeters to less than or equal to about 3 millimeters.

6. The impact resistant component of claim 1 , further comprising floor regions between respective elongate ridges of the plurality, wherein a width of the top wall is greater than or equal to about 20 millimeters to less than or equal to about 35 millimeters, a height of the pair of side walls is greater than or equal to about 10 millimeters to less than or equal to about 18 millimeters, and a width of the floor regions between the respective elongate ridges of the plurality is greater than or equal to about 20 millimeters to less than or equal to about 40 millimeters.

7. The impact resistant component of claim 1 , wherein the support structure is selected from the group consisting of: a gas tank protection shield, an underbody shield, a structural panel, an interior floor, a floor pan, a roof, an exterior surface, a storage area, a glove box, a console box, a trunk, a trunk floor, a truck bed, and combinations thereof.

8. An impact resistant component for a vehicle, comprising:
a support structure comprising a plurality of elongate ridges formed therein, wherein each respective elongate ridge comprises a top wall and a pair of side walls and the top wall is arced, wherein the support structure comprises a composite material having a Young's modulus (E) of greater than or equal to about 20 GPa to less than or equal to about 30 GPa and each respective elongate ridge of the plurality is spaced apart from adjacent elongate ridges of the plurality at predetermined intervals to form a corrugated surface capable of load-carrying.

9. The impact resistant component of claim 8 , wherein the plurality of elongate ridges has a generally periodic profile.

10. The impact resistant component of claim 8 , wherein a sagitta of an arc defined by the arced top wall is less than or equal to about 1 millimeter.

11. The impact resistant component of claim 8 , further comprising a plurality of strategically thickened areas on at least one of the top wall and side walls.

12. The impact resistant component of claim 8 , wherein the composite material is a fiber-reinforced composite comprising a polymer and a carbon fiber.

13. The impact resistant component of claim 8 , wherein the support structure is selected from the group consisting of: a gas tank protection shield, an underbody shield, a structural panel, an interior floor, a floor pan, a roof, an exterior surface, a storage area, a glove box, a console box, a trunk, a trunk floor, a truck bed, and combinations thereof.

14. The impact resistant component of claim 8 , wherein a ratio of the height of the side walls to the Young's modulus (E) is greater than or equal to about 0.4 mm/GPa to less than or equal to about 1 mm/GPa.

15. An impact resistant component for a vehicle, comprising:
a support structure comprising a plurality of elongate ridges formed therein, wherein each respective elongate ridge comprises a top wall and a pair of side walls, wherein a ratio of the height of the side walls to the Young's modulus (E) is greater than or equal to about 0.4 mm/GPa to less than or equal to about 1 mm/GPa and the support structure comprises a composite material; and
at least one thickened region for structural support on at least one of the top wall or the side walls, wherein each respective elongate ridge of the plurality is spaced apart from adjacent elongate ridges of the plurality at predetermined intervals to form a corrugated surface capable of load-carrying.

16. An impact resistant component for a vehicle, comprising:
a support structure comprising a plurality of elongate ridges formed therein, wherein each respective elongate ridge comprises a top wall and a pair of side walls and the top wall is arced, wherein a ratio of the height of the side walls to the Young's modulus (E) is greater than or equal to about 0.4 mm/GPa to less than or equal to about 1 mm/GPa, the support structure comprises a composite material and each respective elongate ridge of the plurality is spaced apart from adjacent elongate ridges of the plurality at predetermined intervals to form a corrugated surface capable of load-carrying.

Assignees

• Gm Global Tech Operations Llc
• Teijin Ltd

Inventors

• Aitharaju Venkat
• Yagi Yutaka
• Konagai Yuhei

Classifications

• B62D29/04 Primary

  predominantly of synthetic material (working of plastics or substances in a plastic state B29) · CPC title

• B62D25/2054

  Load carrying floors for commercial vehicles · CPC title

• B62D21/15 Primary

  having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body (bumpers B60R19/02; shock absorbers in general F16F) · CPC title