Log in to use our free company, program and sector update tracker feature.

March 2006 edition

Damage tolerance and durability of fibre-metal laminates for aircraft structures

By Professors Jenn-Ming Yang, Department of Materials Science and Engineering, and H. Thomas Hahn,

Department of Mechanical and Aerospace Engineering, University of California, Los Angeles

The University of California shares its findings on the use of a hybrid composite consisting of alternating thin layers of metal sheets and fibre-reinforced resin prepreg for potential applications in aircraft structures.

Fibre-reinforced metal laminates (FML) are hybrid composites consisting of alternating thin layers of metal sheets and fibre reinforced resin prepreg. The most commonly used metal for FML is aluminium, and the fibres can be Kevlar or glass. The FML with glass fibres (GLARE) and Kevlar fibres (ARALL) have been evaluated for potential applications in aircraft structures. These laminates possess excellent properties of both metal and fibrous composite materials. This combination results in a new family of hybrid laminates with an ability to impede and arrest crack growth caused by cyclic loading, with excellent impact and damage tolerance characteristics and a low density. Also, the corrosion resistance is excellent because the prepreg layers are able to act as moisture barriers between the various inner aluminium layers, whereas the metal layers protect the fibre/epoxy layers from picking up moisture. The laminate also has an inherent high burn-through resistance as well as good damping and insulation pr....

Full report (1134 words) is available by subscription:  

Tell a friend/colleague about this story:


Subscribers are able to access the full text of articles on this web site, and in a downloadable PDF newsletter. If you have a subscription already then please log in, otherwise see our latest subscription offers.

Enhanced listings:

Reduce the time spent on current projects by using ESDU – engineering data and software that have been approved and endorsed by professional institutions.

Capacitec Gapman Gen3 portable “electronic feeler gauge” measures very small gaps (200 microns) in airframe parts assembly

FGL Precision Ltd
FGL Precision manufactures fine quality components for the aerospace and defence markets where consistent performance is critical.

Redcliffe Precision Ltd
Aerospace Multi Axis CNC Precision Manufacturers & Thread Rolling Specialists.

Dexmet Corporation
Dexmet MicroGrid® an innovative product line that help improve the composite aircraft withstand the rigors of a lightning strike.

See our advertising tariff.


data pages remaining in monthly quota for non-subscribers

© Airframer Limited, operated under licence by Stansted News Limited 2018. Terms & Conditions of reading. Privacy policy