FML (Fibre Metal Laminates) were primarily developed for fatigue prone areas of modern civil aircraft. Two grades of FML are commercially available; ARALL, based on aramid fibres and GLARE, based on high strength glass fibres. The fatigue properties of FML have been evaluated in numerous test programs at Delft University and throughout the aircraft industry. Under realistic loading conditions, laminates exhibit crack growth rates 10 to 100 times slower than their monolithic aluminum constituents. GLARE excels in all types of fatigue-critical aircraft loading situations. Unlike composites, the damage tolerance behavior of FML is comparable to conventional aluminum alloys. The same types of damage and plastic deformation are observed, only at higher impact energy levels. Impact deformation is actually a significant advantage of FML, especially when compared to composites because this visible damage significantly increases inspectability. Therefore, the use of FML allows for repair criteria and techniques, i.e. riveted patches, similar to those used for aluminum.
Development of fibre metal laminates for advanced aerospace structures
1998
7 Seiten, 7 Bilder, 2 Quellen
Conference paper
English
The applicability of magnesium based Fibre Metal Laminates in aerospace structures
Tema Archive | 2008
|British Library Conference Proceedings | 2001
|Metal laminates for aerospace applications
Tema Archive | 1990
|Nanoreinforced films and laminates for aerospace structures
European Patent Office | 2016
|