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Start / News and media / News Archive / Nyheter 2012 / Systems for composite material…

Systems for composite materials

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Using composite materials does not only allow for rigid and lightweight aircraft and ships. Carbon-fiber reinforced plastics also give them reduced maintenance costs and longer life spans. But the use of this technology places high demands on delivering high performance. FMV's Fredrik Hyllengren has the know-how that will allow the Swedish Armed Forces to get the maximum value from their investment.

Fredrik Hyllengren, FMV's technical expert in composite materials, describes his field as designing in mud and straw, only a bit more advanced. The principle of carbon-fiber composite is very simple. Build a structure of carbon fibers, fill it with plastic, and let it harden. The result is one of the stiffest and lightest materials - perfect for building airplanes and ships. But baking the composite incorrectly can end in disaster.

"The snag is that you define the properties when you bake it. You have to have the right material, pre-treatment, environment, processes and trained personnel. If you do it right, you get a fantastic result, but flaws made somewhere in the chain will means that you cannot trust the strength of the materiel. This is something that cannot be detected from the outside.

The main benefit of composite structures is the weight in relation to the strength. A high-performance design with the equivalent performance made of aluminum often weighs much more.

For steel and aluminum constructions there are systems made to handle corrosion and fatigue. In much the same way, we have created the conditions for the development of a system to deal with the special risks associated with composite structures.

In order to not be dependent on the manufacturer for the maintenance of the Swedish Armed Forces vessels, FMV has developed a system for companies to certify their techniques for composite repair work.

It is important that the large suppliers are subjected to fair competition. This ensures that the Swedish State does not pay too high a price while developing the Swedish industry.

By using a way of thinking that we brought over from composite repairs in aviation, all potential repair yards can compete on equal terms. If the system is used correctly by the Swedish Armed Forces, the quality increases considerably since the same requirements are applied to all who want to submit a tender.

This is what is so great about working at FMV. There are interesting products for an engineer, at a high technical level. At the same time there is a focus on increasing efficiency for the Swedish Armed Forces at a reasonable cost. Delicately balancing these perspectives when contracting business, in order to create enhanced technology that is what drives me."

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Published: 2012-10-30 14:59. Changed: 2013-07-09 15:19. Responsible: Show e-mail address.