Numerical simulation and experimental study of the damage law of EFP warhead charging of cylindrical shells under different angles
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Latin American journal of solids and structures (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252022000400504 |
Resumo: | Abstract In this paper, LS-dyna software was used to simulate the charging process of cylindrical shell when EFP has different angles, and some interesting phenomena and laws were found. Cylindrical elastic wave σr was generated when the cylindrical shell was impacted by EFP. The cylindrical elastic wave σr was correlated with the time required for the cylindrical shell charge to be successfully detonated. When the EFP warhead penetration Angle θ ranges from 0° to 10°, the σr increases linearly with (cosθ)-1/2. With the increase of θ, the tangential velocity vy had an obvious effect on the impact of EFP on the cylindrical shell, and the linear relationship between the elastic wave σr and (cosθ)-1/2 does not change. When the θ was greater than 45°, EFP could not successfully impact and detonate the cylindrical shell charge. The EFP velocity was measured by velocity measurement method with an error of 1.3%. The experimental results have strong similarity with the simulation results, indicating that the parameters of the numerical simulation model have good reliability. |
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Latin American journal of solids and structures (Online) |
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Numerical simulation and experimental study of the damage law of EFP warhead charging of cylindrical shells under different anglesEFP warheadImpact detonationCylindrical-shell chargeNumerical simulationAbstract In this paper, LS-dyna software was used to simulate the charging process of cylindrical shell when EFP has different angles, and some interesting phenomena and laws were found. Cylindrical elastic wave σr was generated when the cylindrical shell was impacted by EFP. The cylindrical elastic wave σr was correlated with the time required for the cylindrical shell charge to be successfully detonated. When the EFP warhead penetration Angle θ ranges from 0° to 10°, the σr increases linearly with (cosθ)-1/2. With the increase of θ, the tangential velocity vy had an obvious effect on the impact of EFP on the cylindrical shell, and the linear relationship between the elastic wave σr and (cosθ)-1/2 does not change. When the θ was greater than 45°, EFP could not successfully impact and detonate the cylindrical shell charge. The EFP velocity was measured by velocity measurement method with an error of 1.3%. The experimental results have strong similarity with the simulation results, indicating that the parameters of the numerical simulation model have good reliability.Associação Brasileira de Ciências Mecânicas2022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252022000400504Latin American Journal of Solids and Structures v.19 n.4 2022reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/1679-78256910info:eu-repo/semantics/openAccessZhang,KunZhao,ChangxiaoJi,ChongZhang,ShaoguangWang,XinJiang,TaoWu,Gangeng2022-07-04T00:00:00Zoai:scielo:S1679-78252022000400504Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=1679-7825&lng=pt&nrm=isohttps://old.scielo.br/oai/scielo-oai.phpabcm@abcm.org.br||maralves@usp.br1679-78251679-7817opendoar:2022-07-04T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false |
dc.title.none.fl_str_mv |
Numerical simulation and experimental study of the damage law of EFP warhead charging of cylindrical shells under different angles |
title |
Numerical simulation and experimental study of the damage law of EFP warhead charging of cylindrical shells under different angles |
spellingShingle |
Numerical simulation and experimental study of the damage law of EFP warhead charging of cylindrical shells under different angles Zhang,Kun EFP warhead Impact detonation Cylindrical-shell charge Numerical simulation |
title_short |
Numerical simulation and experimental study of the damage law of EFP warhead charging of cylindrical shells under different angles |
title_full |
Numerical simulation and experimental study of the damage law of EFP warhead charging of cylindrical shells under different angles |
title_fullStr |
Numerical simulation and experimental study of the damage law of EFP warhead charging of cylindrical shells under different angles |
title_full_unstemmed |
Numerical simulation and experimental study of the damage law of EFP warhead charging of cylindrical shells under different angles |
title_sort |
Numerical simulation and experimental study of the damage law of EFP warhead charging of cylindrical shells under different angles |
author |
Zhang,Kun |
author_facet |
Zhang,Kun Zhao,Changxiao Ji,Chong Zhang,Shaoguang Wang,Xin Jiang,Tao Wu,Gang |
author_role |
author |
author2 |
Zhao,Changxiao Ji,Chong Zhang,Shaoguang Wang,Xin Jiang,Tao Wu,Gang |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Zhang,Kun Zhao,Changxiao Ji,Chong Zhang,Shaoguang Wang,Xin Jiang,Tao Wu,Gang |
dc.subject.por.fl_str_mv |
EFP warhead Impact detonation Cylindrical-shell charge Numerical simulation |
topic |
EFP warhead Impact detonation Cylindrical-shell charge Numerical simulation |
description |
Abstract In this paper, LS-dyna software was used to simulate the charging process of cylindrical shell when EFP has different angles, and some interesting phenomena and laws were found. Cylindrical elastic wave σr was generated when the cylindrical shell was impacted by EFP. The cylindrical elastic wave σr was correlated with the time required for the cylindrical shell charge to be successfully detonated. When the EFP warhead penetration Angle θ ranges from 0° to 10°, the σr increases linearly with (cosθ)-1/2. With the increase of θ, the tangential velocity vy had an obvious effect on the impact of EFP on the cylindrical shell, and the linear relationship between the elastic wave σr and (cosθ)-1/2 does not change. When the θ was greater than 45°, EFP could not successfully impact and detonate the cylindrical shell charge. The EFP velocity was measured by velocity measurement method with an error of 1.3%. The experimental results have strong similarity with the simulation results, indicating that the parameters of the numerical simulation model have good reliability. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252022000400504 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252022000400504 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1679-78256910 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Ciências Mecânicas |
publisher.none.fl_str_mv |
Associação Brasileira de Ciências Mecânicas |
dc.source.none.fl_str_mv |
Latin American Journal of Solids and Structures v.19 n.4 2022 reponame:Latin American journal of solids and structures (Online) instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) instacron:ABCM |
instname_str |
Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) |
instacron_str |
ABCM |
institution |
ABCM |
reponame_str |
Latin American journal of solids and structures (Online) |
collection |
Latin American journal of solids and structures (Online) |
repository.name.fl_str_mv |
Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) |
repository.mail.fl_str_mv |
abcm@abcm.org.br||maralves@usp.br |
_version_ |
1754302890992730112 |