Impact Response of Aluminium Alloy Foams Under Complex Stress States

Detalhes bibliográficos
Autor(a) principal: Zhou,Zhiwei
Data de Publicação: 2016
Outros Autores: Su,Buyun, Wang,Zhihua, Shu,Xuefeng, Zhao,Longmao
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=S1679-78252016000400665
Resumo: Abstract A series of dynamic tests were conducted on a closed-cell aluminum alloy foams in order to determine experimental failure surface under impact loading conditions. Quasi-static tests have also been performed to investigate failure mechanism under different stress paths. Three typical types of deformation modes can be observed, which corresponds to the different failure mechanism. The failure loci of the foam in principal stress plane are explored from quasi-static to dynamic loading conditions. A significant strength enhancement is identified experimentally. The expansion of the failure locus from the quasi-static to the dynamic test is almost isotropic. A modified failure criterion for the metallic foam is proposed to predict failure locus as a function of strain rate. This rate-dependence failure criterion is capable of giving a good description of the biaxial failure stresses over a wide range of the strain rates.
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spelling Impact Response of Aluminium Alloy Foams Under Complex Stress StatesMetallic FoamsImpact loadingFailure modeDynamic failure surfaceAbstract A series of dynamic tests were conducted on a closed-cell aluminum alloy foams in order to determine experimental failure surface under impact loading conditions. Quasi-static tests have also been performed to investigate failure mechanism under different stress paths. Three typical types of deformation modes can be observed, which corresponds to the different failure mechanism. The failure loci of the foam in principal stress plane are explored from quasi-static to dynamic loading conditions. A significant strength enhancement is identified experimentally. The expansion of the failure locus from the quasi-static to the dynamic test is almost isotropic. A modified failure criterion for the metallic foam is proposed to predict failure locus as a function of strain rate. This rate-dependence failure criterion is capable of giving a good description of the biaxial failure stresses over a wide range of the strain rates.Associação Brasileira de Ciências Mecânicas2016-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252016000400665Latin American Journal of Solids and Structures v.13 n.4 2016reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/1679-78252344info:eu-repo/semantics/openAccessZhou,ZhiweiSu,BuyunWang,ZhihuaShu,XuefengZhao,Longmaoeng2016-05-24T00:00:00Zoai:scielo:S1679-78252016000400665Revistahttp://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:2016-05-24T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false
dc.title.none.fl_str_mv Impact Response of Aluminium Alloy Foams Under Complex Stress States
title Impact Response of Aluminium Alloy Foams Under Complex Stress States
spellingShingle Impact Response of Aluminium Alloy Foams Under Complex Stress States
Zhou,Zhiwei
Metallic Foams
Impact loading
Failure mode
Dynamic failure surface
title_short Impact Response of Aluminium Alloy Foams Under Complex Stress States
title_full Impact Response of Aluminium Alloy Foams Under Complex Stress States
title_fullStr Impact Response of Aluminium Alloy Foams Under Complex Stress States
title_full_unstemmed Impact Response of Aluminium Alloy Foams Under Complex Stress States
title_sort Impact Response of Aluminium Alloy Foams Under Complex Stress States
author Zhou,Zhiwei
author_facet Zhou,Zhiwei
Su,Buyun
Wang,Zhihua
Shu,Xuefeng
Zhao,Longmao
author_role author
author2 Su,Buyun
Wang,Zhihua
Shu,Xuefeng
Zhao,Longmao
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Zhou,Zhiwei
Su,Buyun
Wang,Zhihua
Shu,Xuefeng
Zhao,Longmao
dc.subject.por.fl_str_mv Metallic Foams
Impact loading
Failure mode
Dynamic failure surface
topic Metallic Foams
Impact loading
Failure mode
Dynamic failure surface
description Abstract A series of dynamic tests were conducted on a closed-cell aluminum alloy foams in order to determine experimental failure surface under impact loading conditions. Quasi-static tests have also been performed to investigate failure mechanism under different stress paths. Three typical types of deformation modes can be observed, which corresponds to the different failure mechanism. The failure loci of the foam in principal stress plane are explored from quasi-static to dynamic loading conditions. A significant strength enhancement is identified experimentally. The expansion of the failure locus from the quasi-static to the dynamic test is almost isotropic. A modified failure criterion for the metallic foam is proposed to predict failure locus as a function of strain rate. This rate-dependence failure criterion is capable of giving a good description of the biaxial failure stresses over a wide range of the strain rates.
publishDate 2016
dc.date.none.fl_str_mv 2016-04-01
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=S1679-78252016000400665
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252016000400665
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1679-78252344
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.13 n.4 2016
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
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