Composites are helping architects to make highly unusual curved and freeform shapes in large buildings in the Middle East, such as the Sidra Hospital under construction in Qatar on the Arabian peninsula. Roofing panels up to 15m to 25m (49 ft to 82 ft) long have been made with the material. (Source: Affan Innovative Structures)
How refreshing, Ann, to see these currvy buildings. I'd love to see more of this in the U.S. Is there any reason these materials are being used for buildings outside the U.S.? Is it because we're not building a lot of buildings these days
Even though these materials are being used in non-load-bearing applications, they must have considerable flexural strength. The structure in the secon slide looks like it would be subject to som high wind loading.
From the last paragraph it implies that Carbon Composites are still much more expensive than traditional steel or concrete processes. Would this factor be 2X or more? If so, then in the near future Carbon Composite techniques will still be limited to specialty applications where steel or concrete can't be used (unless a customer in a very wealthy location like Dubai wants to make a aesthetic statement and money is not the primary decision criteria).
Greg M Jung, you are correct their are still certain factors that keep us away from carbon fibre first one is the cost factor secondly there exist reliability issues.What if the crack or some damage occurs on particular object will it be repairable?
This is really cool to see, Ann. These buildings are much sexier than blocky buildings and it's interesting the composites are helping to make it possible. I was just in Sevilla, Spain, over the weekend and saw a similarly curved building that represents cutting-edge architecture for that city. (It really stood out from the other buildings in the city, which as you can imagine are quite old and ornate.) I don't know much about it but maybe now I will research it and find out if composites were used there, too. Maybe I missed it in the story, but does climate have anything to do with the use of composites? The climate in Sevilla is very dry and hot generally, just like the Middle East.
Yes, that occurred to me as well, Chuck. Even if the composites don't bear weight, they have weight of their own they need to support. One would guess this has been taken into consideration, including wind stress.
A lightweight electric urban concept car designed by several European companies weighs only 992 lb without its battery. It would have weighed 26.7 lb more if its windows were made of glass instead of the specially coated LEXAN polycarbonate resin from SABIC Innovative Plastics.
Skylar Tibbits' team in MIT's Self-Assembly Lab is now 4D printing self-assembling shapes made of programmable carbon composites and custom wood grain. The composites are being used in a sport car airfoil, and the wood grain is beautiful.
The NanoSteel Company has produced high-hardness ferrous metal matrix composite (MMC) parts using a new nanosteel powder in a one-step 3D-printing process. Parts are 99.9% dense, crack-free, and with wear resistance comparable to M2 tool steels.
The company that brought you 3D-printed eyeglasses has launched both an improved clear polymer material for 3D printing optical components and a high-speed, precision, 3D-printing process for making small- and medium-sized batches in a few days.
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