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Stress-Corrosion Cracking and Corrosion Fatigue Impact of IZ-C17+Zinc-Nickel on 4340 Steel

The protection of cathodic metallic materials used for aircraft components, like 4340, Aermet 100, and PH 13-8 corrosion-resistant steel, is critical to keeping the steel from pitting and cracking due to exposure to the operating environment. Two important properties are resistance to stress-corrosion cracking (SCC) and corrosion fatigue. These are insidious failure mechanisms that can lead to part failure in service.

Posted in: Briefs, Aerospace, Corrosion, Fatigue, Nickel alloys, Steel, Zinc alloys
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Sensors Detect Aircraft Damage as it Occurs

The Army developed and tested networked acoustic emission sensors that can detect airframe damage on conceptual composite UH-60 Black Hawk rotorcraft. The sensing method can be used to reliably detect and locate the initiation and growth of damage that may occur during service.

Posted in: News, Defense, Sensors
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NASA Unveils the Future of Science Drones

NASA scientists now have use of two agency-developed unmanned aerial systems that some say represent the future for drone aircraft. The drones purposely were designed for scientific investigations and offer the scientific community complementary, easy-to-use capabilities at a lower cost.

Posted in: News, Aerospace, Defense
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A Better Understanding of Space — Via Helicopter

An algorithm that helps engineers design better helicopters may help astronomers more precisely envision the formation of planets and galaxies. The new model understands how black holes, planets, and galaxies emerge from the vortex-rich environments of space. Researchers drew inspiration from a mechanical engineering algorithm that shows how air flows past a helicopter’s rotor blades.

Posted in: News, Defense, Mathematical/Scientific Software, Software
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NASA, Boeing Test Synthetic Vision

NASA and Boeing are working together under a new Space Act Agreement to improve flight training and aviation safety using NASA’s synthetic vision technologies and Boeing’s 787 simulators. Synthetic vision technologies are essentially weather-immune displays that allow pilots to see what the world looks like in perfect weather conditions all the time.

Posted in: INSIDER, News, Defense, Displays/Monitors/HMIs, Imaging
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Renewable Jet Fuel Takes Flight

In 2016, U.S. military and commercial flights together used more than 20 billion gallons of jet fuel. So how do we make air travel easier on the environment? University of Delaware researchers are working to develop an alternative jet fuel that powers planes with corncobs and wood chips instead of petroleum.

Posted in: INSIDER, News, Aerospace, Aviation, Defense
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Researchers Show How Fear Memories Can Be Erased

Researchers at the University of California, Riverside have devised a method to selectively erase particular fear memories by weakening the connections between the nerve cells (neurons) involved in forming these memories. A sight, sound, or smell we have sensed may not later trigger fear, but if the stimulus is associated with a traumatic event, such as a car accident, then fear memory is formed, and fearful responses are triggered by the stimulus.

Posted in: News, Defense, Medical, Photonics
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New Gaming System Helps Soldiers Test Virtual Versions of Gear

The Army is rolling out a new gaming system, called Operation Overmatch, that soldiers can use to test virtual versions of gear and operation concepts that could be implemented in the future.

Posted in: News, Defense, Computers, Simulation Software
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Painless Microneedles Extract Fluid for Wearable Sensors for Soldiers

Sandia National Laboratories and University of New Mexico researchers have developed unique microneedle-based sensor technology that they hope can someday be used to help soldiers on vital missions. Ronen Polsky, a Sandia materials scientist who leads the design of the microneedle sensor, said the technology is the first way to extract large volumes of pure interstitial fluid for further study.

Posted in: INSIDER, News, Defense, Diagnostics, Drug Delivery, Patient Monitoring, Data Acquisition, Sensors
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Technique Predicts Early Warning Signs of Structure’s “Wellness”

Researchers from the U.S. Army Research Laboratory have shown that early fatigue damage behavior in structures may be predicted through the study of the microscale mechanical behavior of the material. By understanding the behavior of the material prior to damage, it could lead to vehicle structures that act as sensors themselves, with the ability to report their health state and adapt to varying conditions.

Posted in: INSIDER, News, Defense, Materials
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