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dc.contributor.author
Higgingbotham, Andrew
dc.contributor.author
Bringa, Eduardo Marcial
dc.contributor.author
Taylor, Emma A.
dc.contributor.author
Graham, Giles
dc.date.available
2017-06-08T18:32:24Z
dc.date.issued
2010-11
dc.identifier.citation
Higgingbotham, Andrew; Bringa, Eduardo Marcial; Taylor, Emma A.; Graham, Giles; Penetration scaling in atomistic simulations of hypervelocity impact; Elsevier; International Journal Of Impact Engineering; 38; 4; 11-2010; 247-251
dc.identifier.issn
0734-743X
dc.identifier.uri
http://hdl.handle.net/11336/17791
dc.description.abstract
We present atomistic molecular dynamics simulations of the impact of copper nano particles at 5 km s 1 on copper films ranging in thickness from from 0.5 to 4 times the projectile diameter. We access both penetration and cratering regimes with final cratering morphologies showing considerable similarity to experimental impacts on both micron and millimetre scales. Both craters and holes are formed from a molten region, with relatively low defect densities remaining after cooling and recrystallisation. Crater diameter and penetration limits are compared to analytical scaling models: in agreement with some models we find the onset of penetration occurs for 1.0 < f/dp < 1.5, where f is the film thickness and dp is the projectile diameter. However, our results for the hole size agree well with scaling laws based on macroscopic experiments providing enhanced strength of a nano-film that melts completely at the impact region is taken into account.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Hipervelocity Impact
dc.subject
Cratering
dc.subject
Molecular Dynamics
dc.subject.classification
Física de los Materiales Condensados
dc.subject.classification
Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Penetration scaling in atomistic simulations of hypervelocity impact
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-04-07T13:40:44Z
dc.journal.volume
38
dc.journal.number
4
dc.journal.pagination
247-251
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Higgingbotham, Andrew. University Of Oxford. Department Of Physics; Reino Unido
dc.description.fil
Fil: Bringa, Eduardo Marcial. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina
dc.description.fil
Fil: Taylor, Emma A.. The Open University; Reino Unido
dc.description.fil
Fil: Graham, Giles. Natural History Museum; Reino Unido
dc.journal.title
International Journal Of Impact Engineering
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0734743X10001922
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.ijimpeng.2010.10.034
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