Shattering impact fragmentation of slender nanoprojectiles
2019
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Molecular dynamics simulations of the rigid-anvil collision test are performed to achieve the complete pulverization of slender nanoprojectiles. The simulation setup mimics the traditional Taylor test (the flat-ended nanoscale bars collide with a rough rigid wall) at striking velocities that reach an awesome range from 20 km/s to 120 km/s. The objective is to investigate, so called, shattering fragmentation, defined by the complete disintegration (pulverization) of the slender monocrystalline nanoprojectile into the cloud of monatomic debris (m(max) = m(max1) equivalent to 1). The critical impact energy associated with this transition from the stochastic to the deterministic fragment distribution is investigated at two widely different initial temperatures of the slender nanoprojectile while scaling its size in a self-similar manner by varying their widths (diameters) at a fixed aspect ratio. For all but the smallest nanoprojectiles, the minimum achievable m(max) >> m(max1) is discusse...d based on the physically-limiting striking velocity range.
Кључне речи:
Taylor test / Shattering fragmentation / Impact fragmentation / Hypervelocity impactИзвор:
Meccanica, 2019, 54, 14, 2295-2306Издавач:
- Springer, Dordrecht
Финансирање / пројекти:
- Ministry of Education, Science and Technological Development of the Republic of Serbia
DOI: 10.1007/s11012-019-01075-3
ISSN: 0025-6455
WoS: 000500352100014
Scopus: 2-s2.0-85074719321
Институција/група
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Mastilović, Sreten PY - 2019 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/1224 AB - Molecular dynamics simulations of the rigid-anvil collision test are performed to achieve the complete pulverization of slender nanoprojectiles. The simulation setup mimics the traditional Taylor test (the flat-ended nanoscale bars collide with a rough rigid wall) at striking velocities that reach an awesome range from 20 km/s to 120 km/s. The objective is to investigate, so called, shattering fragmentation, defined by the complete disintegration (pulverization) of the slender monocrystalline nanoprojectile into the cloud of monatomic debris (m(max) = m(max1) equivalent to 1). The critical impact energy associated with this transition from the stochastic to the deterministic fragment distribution is investigated at two widely different initial temperatures of the slender nanoprojectile while scaling its size in a self-similar manner by varying their widths (diameters) at a fixed aspect ratio. For all but the smallest nanoprojectiles, the minimum achievable m(max) >> m(max1) is discussed based on the physically-limiting striking velocity range. PB - Springer, Dordrecht T2 - Meccanica T1 - Shattering impact fragmentation of slender nanoprojectiles EP - 2306 IS - 14 SP - 2295 VL - 54 DO - 10.1007/s11012-019-01075-3 ER -
@article{ author = "Mastilović, Sreten", year = "2019", abstract = "Molecular dynamics simulations of the rigid-anvil collision test are performed to achieve the complete pulverization of slender nanoprojectiles. The simulation setup mimics the traditional Taylor test (the flat-ended nanoscale bars collide with a rough rigid wall) at striking velocities that reach an awesome range from 20 km/s to 120 km/s. The objective is to investigate, so called, shattering fragmentation, defined by the complete disintegration (pulverization) of the slender monocrystalline nanoprojectile into the cloud of monatomic debris (m(max) = m(max1) equivalent to 1). The critical impact energy associated with this transition from the stochastic to the deterministic fragment distribution is investigated at two widely different initial temperatures of the slender nanoprojectile while scaling its size in a self-similar manner by varying their widths (diameters) at a fixed aspect ratio. For all but the smallest nanoprojectiles, the minimum achievable m(max) >> m(max1) is discussed based on the physically-limiting striking velocity range.", publisher = "Springer, Dordrecht", journal = "Meccanica", title = "Shattering impact fragmentation of slender nanoprojectiles", pages = "2306-2295", number = "14", volume = "54", doi = "10.1007/s11012-019-01075-3" }
Mastilović, S.. (2019). Shattering impact fragmentation of slender nanoprojectiles. in Meccanica Springer, Dordrecht., 54(14), 2295-2306. https://doi.org/10.1007/s11012-019-01075-3
Mastilović S. Shattering impact fragmentation of slender nanoprojectiles. in Meccanica. 2019;54(14):2295-2306. doi:10.1007/s11012-019-01075-3 .
Mastilović, Sreten, "Shattering impact fragmentation of slender nanoprojectiles" in Meccanica, 54, no. 14 (2019):2295-2306, https://doi.org/10.1007/s11012-019-01075-3 . .