Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Kaushik A. Iyer"'
Autor:
Kaushik A. Iyer, Douglas S. Mehoke, Michael Zimmerman, Kevin Liu, A. Thernisien, Guillermo Stenborg, Angelos Vourlidas, Russell A. Howard
Publikováno v:
2021 IEEE Aerospace Conference (50100).
The Wide-Field Imager for Parker Solar Probe (WISPR/PSP) has recorded intermittent bright streaks radiating across its field of view during close encounters with the Sun. As part of a broader effort to ensure PSP safety in the near Sun dust environme
Autor:
Jack F. Riley, Kaushik A. Iyer, Kelli McCoy, Douglas S. Mehoke, Anthony M. Mark, Ethan Post, Hayden Burgoyne, Michael DiNicola, Wayne F. Dellinger
Publikováno v:
2019 IEEE Aerospace Conference.
A scarcely explored means for reducing the probability of biological contamination of a planetary body when inadvertently impacted by an Earth-origin spacecraft is the heat generated by the impact event itself. This paper formulates some necessary co
Publikováno v:
International Journal of Impact Engineering. 80:116-132
We use the commercial finite element software Abaqus to study three-dimensional deformations of glass panels impacted at normal incidence by a 0.5 mm diameter steel sphere moving at about 3 km/s and having kinetic energy of approximately 2.3 J. We qu
Publikováno v:
Journal of Spacecraft and Rockets. 52:584-594
Definition of interplanetary dust particle hypervelocity impact protection levels provided by spacecraft multilayer insulation/thermal blankets is provided for the first time. Development of a new data-anchored shock-hydrocode-computations-derived ba
Publikováno v:
2017 IEEE Aerospace Conference.
To assure mission success of the Solar Probe Plus (SPP) spacecraft, defined by achieving its final mission orbit with a perihelion distance of less than 10 solar radii, it is necessary to define the dust hypervelocity impact (HVI) protection levels p
Autor:
Clayton Smith, Kaushik A. Iyer, John R. Spencer, Mark R. Showalter, Douglas S. Mehoke, David Seal, Thomas Mehoke, Alan Stern
Publikováno v:
2017 IEEE Aerospace Conference.
After the launch of the New Horizons spacecraft in 2006, the discovery of four new moons in the Pluto-Charon system led to the concern that there could be a significant dust environment that would endanger the spacecraft during the flyby. The best ob
Autor:
Robert C. Brown, Kaushik A. Iyer, Ryan M. Deacon, P. K. Swaminathan, Kevin L. Poormon, Douglas S. Mehoke
Publikováno v:
Procedia Engineering. 58:127-137
Titanium alloy, Ti-6Al-4 V, and commercially pure (CP) Titanium will be used to protect the Solar Probe Plus (SPP) spacecraft against hypervelocity impacts by solar dust particles. The results of six hypervelocity impact (HVI) tests performed on Ti-6
Autor:
Kaushik A. Iyer
Publikováno v:
International Journal of Fracture. 146:1-18
Internal fracture patterns developed in silicon carbide cylindrical targets as a result of dynamic indentation (63–500 m/s) by tungsten carbide spheres are defined. Microscopy of recovered and sectioned targets delineate into three regions, each as
Publikováno v:
2015 IEEE Aerospace Conference.
The size of relatively large dynamic conchoidal fractures, i.e., surface spalls, immediately adjacent to and around interplanetary dust (IDP) hypervelocity impact (HVI) craters or pits in glass substrates is relevant to spacecraft solar cell and scie
Autor:
Peter M. Struk, Mario Vargas, Richard E. Kreeger, Kaushik A. Iyer, Robert E. Gold, Jose Palacios
Publikováno v:
6th AIAA Atmospheric and Space Environments Conference.
This work presents the results of an experimental study of ice particle impacts on a moving wedge. The experiment was conducted in the Adverse Environment Rotor Test Stand (AERTS) facility located at Penn State University. The wedge was placed at the