Fatigue strengthened composite article
US4815940A · kind A · utility
32Cited by
13References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1986 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | Aug 4, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A composite article includes a compressively stressed plating which provides increased static strength and fatigue life. In particular, a fan exit guide vane (1), made of a graphite fiber reinforced composite material and including a conductive plating (7), achieves a 380% increase in static load capability over an unplated composite vane and a low cycle fatigue life of over 1 million cycles through the application of a compressively stressed nickel plating (8) which produces a residual compressive stress state of between -5,000 and -15,000 psi.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.