Numerical and Experimental Study on the Formation and Dispersion Patterns of Multiple Explosively Formed Penetrators
Autor(a) principal: | |
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Data de Publicação: | 2017 |
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=S1679-78252017000400685 |
Resumo: | Abstract Three-dimensional numerical simulations and experiments were performed to examine the formation and spatial dispersion patterns of integral multiple explosively formed penetrators (MEFP) warhead with seven hemispherical liners. Numerical results had successfully described the formation process and distribution pattern of MEFP. A group of penetrators consisting of a central penetrator surrounded by 6 penetrators is formed during the formation process of MEFP and moves in the direction of aiming position. The maximum divergence angle of the surrounding penetrator group was 7.8°, and the damage area could reach 0.16 m2 at 1.2 m. The laws of perforation dispersion patterns of MEFP were also obtained through a nonlinear fitting of the perforation information on the target at different standoffs. The terminal effects of the MEFP warhead were performed on three #45 steel targets with a dimension of 160cm ( 160cm ( 1.5cm at various standoffs (60, 80, and 120 cm). The simulation results were validated through penetration experiments at different standoffs. It has shown excellent agreement between simulation and experiment results. |
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Latin American journal of solids and structures (Online) |
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Numerical and Experimental Study on the Formation and Dispersion Patterns of Multiple Explosively Formed PenetratorsMultiple Explosively Formed Penetrators (MEFP)FormationPenetrationStandoffDispersion patternAbstract Three-dimensional numerical simulations and experiments were performed to examine the formation and spatial dispersion patterns of integral multiple explosively formed penetrators (MEFP) warhead with seven hemispherical liners. Numerical results had successfully described the formation process and distribution pattern of MEFP. A group of penetrators consisting of a central penetrator surrounded by 6 penetrators is formed during the formation process of MEFP and moves in the direction of aiming position. The maximum divergence angle of the surrounding penetrator group was 7.8°, and the damage area could reach 0.16 m2 at 1.2 m. The laws of perforation dispersion patterns of MEFP were also obtained through a nonlinear fitting of the perforation information on the target at different standoffs. The terminal effects of the MEFP warhead were performed on three #45 steel targets with a dimension of 160cm ( 160cm ( 1.5cm at various standoffs (60, 80, and 120 cm). The simulation results were validated through penetration experiments at different standoffs. It has shown excellent agreement between simulation and experiment results.Associação Brasileira de Ciências Mecânicas2017-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252017000400685Latin American Journal of Solids and Structures v.14 n.4 2017reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/1679-78253385info:eu-repo/semantics/openAccessLiu,Jian FengLong,YuanJi,ChongXu,Quan JunGao,Fu YinZhao,Chang Xiaoeng2017-06-22T00:00:00Zoai:scielo:S1679-78252017000400685Revistahttp://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:2017-06-22T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false |
dc.title.none.fl_str_mv |
Numerical and Experimental Study on the Formation and Dispersion Patterns of Multiple Explosively Formed Penetrators |
title |
Numerical and Experimental Study on the Formation and Dispersion Patterns of Multiple Explosively Formed Penetrators |
spellingShingle |
Numerical and Experimental Study on the Formation and Dispersion Patterns of Multiple Explosively Formed Penetrators Liu,Jian Feng Multiple Explosively Formed Penetrators (MEFP) Formation Penetration Standoff Dispersion pattern |
title_short |
Numerical and Experimental Study on the Formation and Dispersion Patterns of Multiple Explosively Formed Penetrators |
title_full |
Numerical and Experimental Study on the Formation and Dispersion Patterns of Multiple Explosively Formed Penetrators |
title_fullStr |
Numerical and Experimental Study on the Formation and Dispersion Patterns of Multiple Explosively Formed Penetrators |
title_full_unstemmed |
Numerical and Experimental Study on the Formation and Dispersion Patterns of Multiple Explosively Formed Penetrators |
title_sort |
Numerical and Experimental Study on the Formation and Dispersion Patterns of Multiple Explosively Formed Penetrators |
author |
Liu,Jian Feng |
author_facet |
Liu,Jian Feng Long,Yuan Ji,Chong Xu,Quan Jun Gao,Fu Yin Zhao,Chang Xiao |
author_role |
author |
author2 |
Long,Yuan Ji,Chong Xu,Quan Jun Gao,Fu Yin Zhao,Chang Xiao |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Liu,Jian Feng Long,Yuan Ji,Chong Xu,Quan Jun Gao,Fu Yin Zhao,Chang Xiao |
dc.subject.por.fl_str_mv |
Multiple Explosively Formed Penetrators (MEFP) Formation Penetration Standoff Dispersion pattern |
topic |
Multiple Explosively Formed Penetrators (MEFP) Formation Penetration Standoff Dispersion pattern |
description |
Abstract Three-dimensional numerical simulations and experiments were performed to examine the formation and spatial dispersion patterns of integral multiple explosively formed penetrators (MEFP) warhead with seven hemispherical liners. Numerical results had successfully described the formation process and distribution pattern of MEFP. A group of penetrators consisting of a central penetrator surrounded by 6 penetrators is formed during the formation process of MEFP and moves in the direction of aiming position. The maximum divergence angle of the surrounding penetrator group was 7.8°, and the damage area could reach 0.16 m2 at 1.2 m. The laws of perforation dispersion patterns of MEFP were also obtained through a nonlinear fitting of the perforation information on the target at different standoffs. The terminal effects of the MEFP warhead were performed on three #45 steel targets with a dimension of 160cm ( 160cm ( 1.5cm at various standoffs (60, 80, and 120 cm). The simulation results were validated through penetration experiments at different standoffs. It has shown excellent agreement between simulation and experiment results. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-03-01 |
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=S1679-78252017000400685 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252017000400685 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1679-78253385 |
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.14 n.4 2017 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_ |
1754302888893480960 |