The Boeing Dreamliner 787 this week passed its much-anticipated ultimate-load wing up-bending test with flying colors. During the testing, loads were applied to the airframe to replicate 150 percent of the most extreme forces the airplane is ever expected to experience while in service. The wings were flexed upward by approximately 25 feet (7.6 meters) during the test. Boeing said that more extensive analysis and review are required.
During each second of the more than two-hour test, thousands of data points were collected to monitor the performance of the wing
Boeing provided no new details on the design changes that boosted the strength of the wing-to-fuselage connection. It had been reported two years ago that design changes were required.
Photo shows ultimate-load wing up-bending test on the 787 Dreamliner static test unit. Photo Source: Boeing
Although plastics make up only about 11% of all US municipal solid waste, many are actually more energy-dense than coal. Converting these non-recycled plastics into energy with existing technologies could reduce US coal consumption, as well as boost domestic energy reserves, says a new study.
This year's Dupont-sponsored WardsAuto survey of automotive designers and other engineers shows lightweighting dominates the discussion. But which materials will help them meet the 2025 CAFE standards are not entirely clear.
Artificially created metamaterials are already appearing in niche applications like electronics, communications, and defense, says a new report from Lux Research. How quickly they become mainstream depends on cost-effective manufacturing methods, which will include additive manufacturing.
SpaceX has 3D printed and successfully hot-fired a SuperDraco engine chamber made of Inconel, a high-performance superalloy, using direct metal laser sintering (DMLS). The company's first 3D-printed rocket engine part, a main oxidizer valve body for the Falcon 9 rocket, launched in January and is now qualified on all Falcon 9 flights.
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