Honeycomb core, honeycomb sandwich structure, and honeycomb core manufacturing method
US10507607B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2016 |
| Grant date | Dec 17, 2019 |
| Priority date | — |
| Expiry date | May 4, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/183
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A honeycomb core includes carbon fiber having four or more different fiber directions, and when a ribbon direction is set as an X axis direction, a cell width direction is set as a Y axis direction, and a direction that is orthogonal to the ribbon direction and the cell width direction is set as a Z axis direction. A condition in which angles formed by the X axis direction and the respective fiber directions of the carbon fiber are set at −45 degrees, 0 degrees, 45 degrees, and 90 degrees is set as a reference condition. The respective fiber directions are rotated from the reference condition by a fixed rotation angle so that none of the fiber directions are parallel to the X axis direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.