A professor of applied mechanics at the Massachusetts Institute of Technology has borrowed a materials analysis technique developed for the car industry and applied it to pipe failure prediction software for offshore drill rig designs. A first test showed a very close correlation between predictions of fracture patterns in the riser of a sunken drill rig, with video images captured at the scene.Researchers at MIT's Impact and Crashworthiness Laboratory used video from the April 2010 explosion of the drill rig Deepwater Horizon in the Gulf of Mexico for the project. They applied techniques used to simulate material deformation in car
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.