IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0212469
(2008-09-17)
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등록번호 |
US-8409691
(2013-04-02)
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발명자
/ 주소 |
- Henry, Christopher P.
- McKnight, Geoffrey P.
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출원인 / 주소 |
|
대리인 / 주소 |
Christie, Parker & Hale, LLP
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인용정보 |
피인용 횟수 :
4 인용 특허 :
4 |
초록
▼
A variable stiffness segmented composite material including reinforcements embedded in a variable stiffness matrix and having a structure for precisely controlling the three-dimensional (3D) distribution and connectivity of the reinforcements in the variable stiffness matrix. The composite material
A variable stiffness segmented composite material including reinforcements embedded in a variable stiffness matrix and having a structure for precisely controlling the three-dimensional (3D) distribution and connectivity of the reinforcements in the variable stiffness matrix. The composite material includes a variable stiffness matrix and a plurality of rigidly interconnected reinforcements embedded within the variable stiffness matrix, the interconnected reinforcements being for mitigating a deformation of the composite material along a first direction by blocking a rigid body motion of the reinforcements with respect to one another in the first direction while allowing a deformation in a second direction differing from the first direction. That is, in one embodiment, the interconnected reinforcements are configured to move with respect to one another to allow for an in-plane deformation of the composite material while mitigating an out-of-plane deformation of the composite material.
대표청구항
▼
1. A composite material comprising: a polymer-based or silicone-based continuous variable stiffness matrix;a first plurality of rigidly interconnected reinforcements embedded within the continuous variable stiffness matrix; anda second plurality of rigidly interconnected reinforcements embedded with
1. A composite material comprising: a polymer-based or silicone-based continuous variable stiffness matrix;a first plurality of rigidly interconnected reinforcements embedded within the continuous variable stiffness matrix; anda second plurality of rigidly interconnected reinforcements embedded within the continuous variable stiffness matrix, the second plurality of rigidly interconnected reinforcements being separated from the first plurality of rigidly interconnected reinforcements by the continuous variable stiffness matrix,the first plurality and the second plurality of rigidly interconnected reinforcements opposing a deformation of the composite material along a first direction by blocking a rigid body motion of the reinforcements with respect to one another in the first direction while allowing a deformation in a second direction differing from the first direction,wherein the first plurality of rigidly interconnected reinforcements are rigidly connected to one another in the first direction,wherein the second plurality of rigidly interconnected reinforcements are rigidly connected to one another in the first direction, andwherein the first plurality of rigidly interconnected reinforcements is spaced from the second plurality of rigidly interconnected reinforcements in the first direction, the second direction, and a third direction perpendicular to the first and second directions. 2. The composite material of claim 1, wherein the first plurality of rigidly interconnected reinforcements and the second plurality of rigidly interconnected reinforcements are configured to move with respect to one another to allow for an in-plane deformation of the composite material while mitigating an out-of-plane deformation of the composite material. 3. The composite material of claim 1, wherein the first direction is perpendicular to the second direction. 4. The composite material of claim 1, wherein the first plurality of rigidly interconnected reinforcements and the second plurality of rigidly interconnected reinforcements are composed of one or more constant stiffness materials. 5. The composite material of claim 1, wherein the first plurality of rigidly interconnected reinforcements and the second plurality of rigidly interconnected reinforcements are composed of metal. 6. The composite material of claim 1, wherein the continuous variable stiffness matrix is composed of a thermoplastic-, thermoset-, or silicone-based material. 7. The composite material of claim 6, wherein the first plurality of rigidly interconnected reinforcements and the second plurality of rigidly interconnected reinforcements comprise registration dimples or troughs to precisely align and restrict relative motion of the first plurality of rigidly interconnected reinforcements and the second plurality of rigidly interconnected reinforcements embedded in the continuous variable stiffness matrix. 8. The composite material of claim 7, wherein the registration dimples or troughs mechanically interconnects the first plurality of rigidly interconnected reinforcements and the second plurality of rigidly interconnected reinforcements via load transmission along the first direction. 9. The composite material of claim 5, wherein the first plurality of rigidly interconnected reinforcements and the second plurality of rigidly interconnected reinforcements are brazed, welded, interference fitted, or mechanically interlocked to one another to precisely align and restrict relative motion of the first plurality of rigidly interconnected reinforcements and the second plurality of rigidly interconnected reinforcements embedded in the continuous variable stiffness matrix. 10. The composite material of claim 9, wherein the first plurality of rigidly interconnected reinforcements and the second plurality of rigidly interconnected reinforcements comprise tongues and grooves to mechanically interlock the first plurality of rigidly interconnected reinforcements and the second plurality of rigidly interconnected reinforcements to one another and to precisely align and restrict relative motion of the first plurality of rigidly interconnected reinforcements and the second plurality of rigidly interconnected reinforcements embedded in the continuous variable stiffness matrix. 11. The composite material of claim 1, wherein each of the first plurality of rigidly interconnected reinforcements and each of the second plurality of rigidly interconnected reinforcements has a three-dimensional cut, stamped or etched relief, andwherein the first plurality of rigidly interconnected reinforcements and the second plurality of rigidly interconnected reinforcements are attached along the first direction to change an effective mechanical load transfer and moment of inertial through a thickness of the composite material. 12. A composite material comprising: a polymer-based or silicone-based continuous variable stiffness matrix;a first plurality of rigidly interconnected reinforcements embedded within the continuous variable stiffness matrix;a second plurality of rigidly interconnected reinforcements embedded within the continuous variable stiffness matrix, the second plurality of rigidly interconnected reinforcements being separated from the first plurality of rigidly interconnected reinforcements by the continuous variable stiffness matrix; anda plurality of connectors,the first plurality of rigidly interconnected reinforcements being rigidly interconnected by the connectors in a first direction and the second plurality of rigidly interconnected reinforcements being rigidly interconnected by the connectors in the first direction to oppose a deformation of the composite material along the first direction while allowing deformation of the continuous variable stiffness matrix along a second direction differing from the first direction, the connectors for interconnecting the first plurality of rigidly interconnected reinforcements being different from the connectors for interconnecting the second plurality of rigidly interconnected reinforcements,wherein the first plurality of rigidly interconnected reinforcements is spaced from the second plurality of rigidly interconnected reinforcements in the first direction, the second direction, and a third direction perpendicular to the first and second directions. 13. The composite material of claim 12, wherein the first plurality of rigidly interconnected reinforcements and the second plurality of rigidly interconnected reinforcements are interconnected by the connectors to move with respect to one another to allow for an in-plane deformation of the composite material while mitigating an out-of-plane deformation of the composite material. 14. The composite material of claim 12, wherein the first direction is perpendicular to the second direction. 15. The composite material of claim 12, wherein the continuous variable stiffness matrix is composed of a thermoplastic-, thermoset-, or silicone-based material. 16. The composite material of claim 15, wherein the connectors comprise registration dimples or troughs to precisely align and restrict relative motion of the reinforcements embedded in the continuous variable stiffness matrix. 17. The composite material of claim 16, wherein the registration dimples or troughs mechanically interconnects the first plurality of rigidly interconnected reinforcements and the second plurality of rigidly interconnected reinforcements via load transmission along the first direction. 18. The composite material of claim 17, wherein the connectors comprise braze joints, weld joints, interference fittings, or mechanical interlocks to interconnect the first plurality of rigidly interconnected reinforcements and the second plurality of rigidly interconnected reinforcements to one another and to precisely align and restrict relative motion of the first plurality of rigidly interconnected reinforcements and the second plurality of rigidly interconnected reinforcements embedded in the continuous variable stiffness matrix. 19. The composite material of claim 18, wherein the first plurality of rigidly interconnected reinforcements and the second plurality of rigidly interconnected reinforcements have geometric shape, spacing and interconnectivity configured from a terrain map of component deformation. 20. The composite material of claim 18, wherein the connectors comprise tongues and grooves to mechanically interlock the first plurality of rigidly interconnected reinforcements and the second plurality of rigidly interconnected reinforcements to one another and to precisely align and restrict relative motion of the first plurality of rigidly interconnected reinforcements and the second plurality of rigidly interconnected reinforcements embedded in the continuous variable stiffness matrix. 21. A composite material comprising: a continuous planar variable stiffness matrix having at least one edge;a shearing frame along the at least one edge of the continuous planar variable stiffness matrix;a first reinforcement element embedded within the continuous planar variable stiffness matrix;a second reinforcement element embedded within the continuous planar variable stiffness matrix, the second reinforcement element being spaced apart from the first reinforcement element in a first direction by the continuous planar variable stiffness matrix; anda cable embedded within the continuous planar variable stiffness matrix,the cable extending in a second direction along a plane of the continuous planar variable stiffness matrix, andthe cable being attached to the shearing frame to mitigate out-of-plane deformation of the composite material by blocking a rigid body motion of the first and second reinforcement elements embedded within the continuous planar variable stiffness matrix while allowing an in-plane deformation of the composite material,wherein the first direction is perpendicular to the plane of the continuous planar variable stiffness matrix, andwherein the first reinforcement element is spaced from the second reinforcement element in the first direction, the second direction, and a third direction perpendicular to the first and second directions.
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