Zobrazeno 1 - 10
of 325
pro vyhledávání: '"R. Beissel"'
Autor:
Sledd, James
Publikováno v:
College English, 1973 Jan 01. 34(4), 584-585.
Externí odkaz:
https://www.jstor.org/stable/375549
Autor:
Johnson, Shelby L.
Publikováno v:
The English Journal, 1967 Sep 01. 56(6), 907-909.
Externí odkaz:
https://www.jstor.org/stable/812471
Autor:
James Sledd
Publikováno v:
College English. 34:584
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
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
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
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
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
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
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