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Porosity and specific surface area dependence of shock-induced plasticity and melting in open-cell nanoporous Cu

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成果类型:
期刊论文
作者:
Shang, Min;Tian, Ze'an;Wang, Liang
通讯作者:
Shang, M
作者机构:
[Shang, Min; Shang, M] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.
[Tian, Ze'an] Hunan Univ, Coll Comp Sci & Elect Engn, Changsha 410082, Peoples R China.
[Tian, Ze'an] Guizhou Univ, Sch Big Data & Informat Engn, Guiyang 550025, Peoples R China.
[Wang, Liang] Peac Inst Multiscale Sci, Chengdu 610207, Sichuan, Peoples R China.
通讯机构:
[Shang, M ] H
Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.
语种:
英文
期刊:
AIP Advances
ISSN:
2158-3226
年:
2024
卷:
14
期:
3
页码:
035108
基金类别:
National Natural Science Foundation of China#&#&#11802092 Natural Science Foundation of Hunan Province#&#&#2019JJ50221#&#&#2019JJ40127#&#&#2020JJ5260#&#&#2020JJ4375 Education Department of Hunan Province#&#&#20A248#&#&#22B0225 Double First-Class Construction Project of Hunan Agricultural University#&#&#SYL2019063
机构署名:
本校为第一且通讯机构
院系归属:
理学院
摘要:
We systematically study the plasticity and melting behavior in shock loading, as well as their dependence on porosity (ϕ) and specific surface area (γ) for nanoporous copper (NPC), by conducting large-scale non-equilibrium molecular dynamics simulations. During shock compression, the plasticity (i.e., dislocation slips) is dominant at lower impact velocities, while melting is governing at higher impact velocities. With increasing ϕ, both the plasticity and melting undergo the transitions from “heterogeneity” to “homogeneity” along the tr...

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