Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Gheorghe Bunget"'
Publikováno v:
Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems. 4
Nonlinear ultrasonic (NLU) techniques have emerged as a potential solution to improve the resolution of nondestructive measurements to detect microstructural changes of cyclically loaded materials. However, current NLU methods need power-demanding in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fcbf4b470d972c0ec21108af1bde5138
https://doi.org/10.1115/1.4047415
https://doi.org/10.1115/1.4047415
Autor:
Gheorghe Bunget, Anindya Ghoshal, Fritz Friedersdorf, Kevin M. Farinholt, Matthew R Webster, Brevin Tilmon, Marc Pepi, James Rogers, Dylan Stewart, Andrew Yee
Publikováno v:
AIP Conference Proceedings.
Widespread damage in aging aircraft is becoming an increasing concern as both civil and military fleet operators are extending the service lifetime of their aircraft. Metallic components undergoing variable cyclic loadings eventually fatigue and form
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31359031d1db551e418700e974a9ff98
https://doi.org/10.1063/1.5031555
https://doi.org/10.1063/1.5031555
Autor:
James Rogers, Kevin M. Farinholt, Andrew Yee, Gheorghe Bunget, Fritz Friedersdorf, Chris Bugg, Stanley Henley, Dylan Stewart, Matthew R Webster, John Cline
Publikováno v:
AIP Conference Proceedings.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da0554eb77b95ac5d671722aabd1b95d
https://doi.org/10.1063/1.5031609
https://doi.org/10.1063/1.5031609
Publikováno v:
Applied Acoustics. 90:74-80
Recycling and retreading is critical for reducing costs and energy consumption for the manufacture of tire casings. An effective retread requires tire casings with good structural integrity and no internal damage. This paper presents an impulse-acous
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a6e9e4bbf77568f520d978672b0daa6
https://doi.org/10.1016/j.apacoust.2014.10.014
https://doi.org/10.1016/j.apacoust.2014.10.014
Autor:
Andrew Yee, Marc Pepi, Kevin M. Farinholt, Gheorghe Bunget, Anindya Ghoshal, Patrick Kramer, Fritz Friedersdorf, Dylan Stewart
Publikováno v:
AIP Conference Proceedings.
Cyclic loading of mechanical components promotes the formation of dislocation dipoles in metals, which can serve as precursors to crack nucleation and ultimately lead to failure. In the laboratory setting, an acoustic nonlinearity parameter has been
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a851a9e4001d20e96009b784fc531914
https://doi.org/10.1063/1.4974613
https://doi.org/10.1063/1.4974613
Autor:
Jeff Demo, Gheorghe Bunget, Aditi Chattopadhyay, Anindya Ghoshal, Adam Goff, Nathan Brown, Fritz Friedersdorf, Marc Pepi, Siddhant Datta
Publikováno v:
51st AIAA/SAE/ASEE Joint Propulsion Conference.
The primary goal of this research effort is to develop nondestructive evaluation techniques capable of detecting material damage precursors mainly for turbine engine materials under low and high-cycle fatigue testing. The experimental results present
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e666e05ec19f5c24f8c5d14957ca41a
https://doi.org/10.2514/6.2015-4196
https://doi.org/10.2514/6.2015-4196
Publikováno v:
Structural Health Monitoring 2015.
Navy submarines and surface ships rely on a combination of material coatings and cathodic protection systems to protect steel tanks and enclosures from corrosion. The US Navy spends an estimated $204 million annually in direct costs [1] to locate and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f6e71bb7b5f12777f943d35023a8421
https://doi.org/10.12783/shm2015/149
https://doi.org/10.12783/shm2015/149
The main objective of the current work is to develop a practical nondestructive inspection methodology for a highly sound absorbing composite structural system consisting of polymeric and metallic materials. Due to constraints in geometrical shapes a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::deeea3fc1358ebc065d04d9198e6511b
https://doi.org/10.21236/ada615759
https://doi.org/10.21236/ada615759
Autor:
Gheorghe Bunget, Stefan Seelecke
Publikováno v:
Active and Passive Smart Structures and Integrated Systems 2010.
Due to the availability of small sensors, Micro-Aerial Vehicles (MAVs) can be used for detection missions of biological, chemical and nuclear agents. Traditionally these devices used fixed or rotary wings, actuated with electric DC motortransmission,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1de88d4cacee2e24c55d5cd7c2df72e5
https://doi.org/10.1117/12.853398
https://doi.org/10.1117/12.853398
Autor:
Stefan Seelecke, Gheorghe Bunget
Publikováno v:
Scopus-Elsevier
The overall objective of the BATMAV project is the development of a biologically-inspired Micro Aerial Vehicle (MAV) with flexible and foldable wings for flapping flight. This paper presents a platform that features bat-inspired wings which are able
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc05f9bf4dc57a94758049ebf78abadd
https://doi.org/10.1115/smasis2010-3853
https://doi.org/10.1115/smasis2010-3853