Designing a flexible material to protect buildings, military personnel
by Staff Writers
Columbia MO (SPX) May 27, 2020
Shake, rattle and roll... Even though they are miles from the epicenter of an earthquake, buildings can collapse due to how an earthquake energy makes the ground shake and rattle.
Now, a team of engineers led by Guoliang Huang, a James C. Dowell Professor in the Mechanical and Aerospace Engineering Department at the University of Missouri College of Engineering, has designed a flexible material that can help buildings withstand multiple waves of energy traveling through a solid material, including the simultaneous forward and backward and side-to-side motions found in earthquakes.
"Our elastic material can stretch and form to a particular surface, similarly to a wrap on a vehicle," Huang said. "It can be applied to the surface of an existing building to allow it to flex in an earthquake. What is unique about the structured lattice-type material is that it protects against both types of energy waves - longitudinal and sheer - that can travel through the ground."
Huang said the material also can be used by the defense industry to protect against vibration in mechanical parts, such as aircraft or submarine engines.
"For over 20 years, no one had a natural solution for this issue in a solid material," Huang said. "Now, we've designed, modeled and fabricated a new material with properties that do not exist naturally for what we believe is a nearly perfect protective device."
The Army Research Office, which provided funding for the basic research effort at the University of Missouri associated with this project, is encouraged by the results from Huang's team.
"The results that the University of Missouri team has recently published are encouraging," said Dan Cole, the program manager at the Army Research Office, a part of the U.S. Army Combat Capabilities Development Command's Army Research Laboratory.
"This research could lead to new strategies for steering mechanical waves away from critical regions in solid objects, which could enable novel capabilities in soldier protection and maneuvering."
A primordial world of minerals litters Atacama desert
Paris (ESA) May 25, 2020
The Copernicus Sentinel-2 mission takes us over part of Chile's Atacama Desert, which is bound on the west by the Pacific and on the east by the Andes. The Atacama is considered one of the driest places on Earth - there are some parts of the desert where rainfall has never been recorded. In this image, captured on 26 June 2019, a specific area in the Tarapaca Region, in northern Chile, is featured - where some of the largest caliche deposits can be found. It is here where nitrates, lithium, potass ... read more
|The content herein, unless otherwise known to be public domain, are Copyright 1995-2024 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. General Data Protection Regulation (GDPR) Statement Our advertisers use various cookies and the like to deliver the best ad banner available at one time. All network advertising suppliers have GDPR policies (Legitimate Interest) that conform with EU regulations for data collection. By using our websites you consent to cookie based advertising. If you do not agree with this then you must stop using the websites from May 25, 2018. Privacy Statement. Additional information can be found here at About Us.