Zobrazeno 1 - 10
of 30
pro vyhledávání: '"R. Beissel"'
Autor:
James D. Walker, Donald J. Grosch, Stephen R. Beissel, Daniel D. Durda, Kevin R. Housen, Sidney Chocron
Publikováno v:
2019 15th Hypervelocity Impact Symposium.
Concrete, sandstone, and, in a previous round of experiments, pumice, were tested under hypervelocity impact at SwRI. Aluminum spheres with diameters of 1 and 1.75 in were shot at a velocity of approximately 2 km/s using a 50-mm conventional powder g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ceaf10200044fb0b2221f86fc0790fb
https://doi.org/10.1115/hvis2019-059
https://doi.org/10.1115/hvis2019-059
Autor:
Sidney Chocron, James D. Walker, Daniel D. Durda, Kevin R. Housen, Stephen R. Beissel, Donald J. Grosch
Publikováno v:
International Journal of Impact Engineering. 151:103832
Two NASA missions that will be launched in 2022 have spun renewed interest in hypervelocity impact of rocks and metals. This work focuses on the prediction of the momentum enhancement effect, i.e. the extra momentum acquired by the target due to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52b3e1a7716bad4ccf9deeb896d7d9f2
https://doi.org/10.1016/j.ijimpeng.2021.103832
https://doi.org/10.1016/j.ijimpeng.2021.103832
Publikováno v:
International Journal of Impact Engineering. 84:171-180
This article presents a Combined Particle-Element Method (CPEM) for 3D intense loading computations that include severe distortions. It includes the numerical algorithms and example computations. The advantages of this method are that the lower-strai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d18eb368f202d5d68c3464539d9378aa
https://doi.org/10.1016/j.ijimpeng.2015.06.006
https://doi.org/10.1016/j.ijimpeng.2015.06.006
Publikováno v:
International Journal of Impact Engineering. 45:52-59
This article examines whether the yield surface of silicon carbide depends on the third invariant of the stress tensor, and how such dependence would affect its performance as an armor material. The JHB ceramic model is augmented by a factor introduc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8db4ce45ab9944746fb492d98466d5ab
https://doi.org/10.1016/j.ijimpeng.2012.01.005
https://doi.org/10.1016/j.ijimpeng.2012.01.005
Publikováno v:
International Journal of Impact Engineering. 38:397-405
This article presents a hybrid particle-finite element algorithm for high-velocity impact. In the hybrid approach, both finite elements and meshless particles represent the same material simultaneously. The initial hybrid concept was introduced and d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4bf245c12c13679207c540703f454c3
https://doi.org/10.1016/j.ijimpeng.2011.01.002
https://doi.org/10.1016/j.ijimpeng.2011.01.002
Publikováno v:
International Journal of Impact Engineering. 35:1410-1418
This paper presents quantitative analyses of computed hypervelocity debris clouds due to aluminum spheres, rods and disks impacting aluminum bumper plates. The computations were performed using an algorithm to convert distorted Lagrangian finite elem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::210f3c9942809e56d989e4a6161cecce
https://doi.org/10.1016/j.ijimpeng.2008.07.059
https://doi.org/10.1016/j.ijimpeng.2008.07.059
Publikováno v:
International Journal of Impact Engineering. 33:80-90
The ability of computations to model characteristics of hypervelocity impact is demonstrated using an algorithm for the automatic conversion of distorted finite elements to meshfree particles. The Lagrangian formulation tracks material boundaries and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95ca673382c90727763505dc017ede7c
https://doi.org/10.1016/j.ijimpeng.2006.09.047
https://doi.org/10.1016/j.ijimpeng.2006.09.047
Publikováno v:
Journal of Applied Physics. 94:1639-1646
This article contains a description of a computational constitutive model for brittle materials subjected to large strains, high strain rates, and high pressures. The focus of this model is to determine the response of aluminum nitride under high vel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::809aa348430ad3afbf131687abdcc4b1
https://doi.org/10.1063/1.1589177
https://doi.org/10.1063/1.1589177
Publikováno v:
International Journal of Impact Engineering. 27:997-1013
This paper presents an explicit 2D Lagrangian algorithm to automatically convert distorted elements into meshless particles during dynamic deformation. It also provides the contact and sliding algorithms to link the particles to the finite elements.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38524cb5c8b8b1ffa6bf33e77227d3c4
https://doi.org/10.1016/s0734-743x(02)00030-1
https://doi.org/10.1016/s0734-743x(02)00030-1
Autor:
Gordon R. Johnson, Stephen R. Beissel
Publikováno v:
International Journal of Impact Engineering. 25:911-925
This paper presents two damping algorithms for explicit dynamics computations. These algorithms are intended to provide damping for the high-frequency structural responses that occur under low pressures. One of the algorithms uses a dimensionless for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bb6b6568c847a1187a37553ae598178
https://doi.org/10.1016/s0734-743x(01)00019-7
https://doi.org/10.1016/s0734-743x(01)00019-7