The composite material designed by Affan Innovative Structures, based on Dow Chemical's Voraforce TF epoxy infusion systems, is being used in non-load-bearing structures. Its high-energy absorbance is important to help reduce damage in the earthquake-prone Middle East. (Source: Affan Innovative Structures)
Ann, social media, at least of the facebook kind, has already gotten old and become a worthless collection of features, as far as I am concerned. Really, it is more like "spewing data" as opposed to sharing information, and very little of communicating insights is done, from what I see. I would not miss it one speck if it were gone some morning.
The various online discussion groups are different by quite a bit, and I enjoy the physics papers weekly publication and discussions as well.
Ah, Chicago still feels warm to me, Cabe. But I know what you mean about steel. I think composites are still a mystery. We don't know yet whether they're going to catch on and we don't know the full range of applications we'll see with composites. It will be interesting.
William, corrosion usually refers to what happens when metal breaks down. Composites can certainly break down, but "corrosion" is not the correct term. They delaminate, fragment, and suffer environmental stress cracking, as we've discussed here: http://www.designnews.com/author.asp?section_id=1392&doc_id=238056 http://www.designnews.com/document.asp?doc_id=236816 http://www.designnews.com/author.asp?section_id=1365&doc_id=238200
Ann, actually, from what I have read, composites do corrode, but differently from metal.
The one other thing is that typically buildings are kept around a lot longer than aircraft or racecars, so that what happens after 30 years of weather matters on a building, while the race car is obsolete and the airplane is probably scrapped, or sold to the minor leagues.
Glad to see the reduction of wood use in architecture. But, I think that is a "no-brainer." A cow in a barn destroyed the wooden version of Chicago. Now, it's all rusty steel. Not a single fire since. Though, the city now has a cold feel to it.
William, I had the same question about damage, but I don't see why the wear problems would be much worse than what aircraft with carbon composite skins experience; in fact, they're probably not nearly as severe, since these buildings aren't speeding through the air and storms of hail, dust, and rain like planes do. Composites, of course, don't corrode like metals do.
Dow Chemical and several other companies have launched a program in Omaha, Neb. to divert about 36 tons of plastics from landfills in its first phase, and convert it into energy used for cement production.
A make-your-own Star Wars Sith Lightsaber hilt is heftier and better-looking than most others out there, according to its maker, Sean Charlesworth. You can 3D print it from free source files, and there's even a hardware kit available -- not free -- so you can build one just in time for Halloween.
Some next-generation bio-based materials are superior in performance to their petro-based counterparts, but also face some commercial challenges. This is especially true of certain biopolymers, adhesives, coatings, and advanced materials.
Cars and other vehicles, as well as electronics and medical devices, continue to lead the use cases for the new plastics products we've been seeing, as engineers design products for tougher environments.
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