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Penetration scaling in atomistic simulations of hypervelocity impact

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 af...

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Role:
Author
Journal:
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
Volume:
38
Issue:
4
Pages:
247-251
Publication date:
2011-04-01
DOI:
ISSN:
0734-743X
Source identifiers:
151672
Language:
English
Keywords:
Pubs id:
pubs:151672
UUID:
uuid:3bf3c39e-e725-4bcb-8b26-88b3da71145c
Local pid:
pubs:151672
Deposit date:
2012-12-19

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