Zobrazeno 1 - 10
of 36
pro vyhledávání: '"J. Michael Pereira"'
Autor:
J. Michael Pereira, Sandi G. Miller, Charles R. Ruggeri, Charles E. Bakis, Rudy T. Haluza, Kevin L. Koudela
Publikováno v:
Earth and Space 2021.
Autor:
J. Michael Pereira, Paul DuBois, Gunther Blankenhorn, Subramaniam Rajan, Bilal Khaled, Loukham Shyamsunder
Publikováno v:
International Journal of Impact Engineering. 159:104032
Researchers have met the challenge of modeling impact events involving composite targets for a variety of applications in a variety of ways. In this paper, the theory and implementation details of an orthotropic visco-elastic-visco-plastic material m
Autor:
Kevin L. Koudela, Charles E. Bakis, Justin D. Littell, J. Michael Pereira, Charles R. Ruggeri, Rudy T. Haluza
Publikováno v:
American Society for Composites 2020.
Autor:
J. Michael Pereira, Rudy T. Haluza, Daniel O. Adams, Mark A. Perl, Charles E. Bakis, Kevin L. Koudela
Publikováno v:
AIAA Scitech 2020 Forum.
Publikováno v:
American Society for Composites 2019.
Triaxially braided fabrics with equal volume fractions of fibers oriented at 60- degree intervals allow for the quick and easy hand-layup of quasi-isotropic (QI) composite laminates, in comparison to unidirectional tape and biaxial-woven fiber archit
Publikováno v:
Journal of Composite Materials. 52:3549-3562
Ballistic impact experiments were performed on triaxially braided polymer matrix composites to study the heat generated in the material due to projectile velocity and penetration damage. Triaxially braided (0/+60/−60) composite panels were manufact
Autor:
Xinran Xiao, J. Michael Pereira, Andy Vanderklok, James D. Dorer, Andy Stamm, Eryi Hu, Matthew Auvenshine
Publikováno v:
International Journal of Impact Engineering. 111:244-254
The single-stage gas gun testing methodology was investigated. A thermodynamics based method was used to estimate the required pressures for a targeted velocity. The transmitted impact force was measured with four load cells installed behind the test
Publikováno v:
2018 Atmospheric and Space Environments Conference.
This work presents the results of an experimental study of ice particle impacts on a flat glass plate. The experiment was conducted at the Ballistics Impact Laboratory of NASA Glenn Research Center. The main objective of the experiment was to gain un
Publikováno v:
2018 AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference.
The purpose of this presntation is to provide an executive overview of the HEDI effort for NASAs Advanced Composites Program and establish the foundation for the remaining papers to follow in the 2018 SciTech special session NASA ACC High Energy Dyna
Publikováno v:
American Society for Composites 2017.
Ballistic impact experiments were performed on triaxially braided polymer matrix composites to study the heat generated in the material due to projectile velocity and penetration damage. Quantifying the heat generation phenomenon is crucial for attai