Composite stiffeners for aerospace vehicles
US8720825B2 · kind B2 · utility
10Cited by
31References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 4, 2010 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | May 5, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24124
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An aerospace vehicle includes a plurality of composite stiffeners. Each stiffener of the plurality has a stack of plies of reinforcing fibers. At least some of the plies in the stack have reinforcing fibers oriented at ±α with respect to an axis of primary loading, where α is between 2 and 12 degrees. At least some of the plies in the stack have reinforcing fibers oriented at ±β with respect to the axis of primary loading, where β is between 50 and 85 degrees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.