Effects of the Strain Rate Sensitivity and Strain Hardening on the Saturated Impulse of Plates
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=S1679-78252017000701273 |
Resumo: | Abstract This paper studies the stiffening effects of the material strain rate sensitivity and strain hardening on the saturated impulse of elastic, perfectly plastic plates. Finite element (FE) code ABAQUS is employed to simulate the elastoplastic response of square plates under rectangular pressure pulse. Rigid-plastic analyses for saturated impulse, which consider strain rate sensitivity and strain hardening, are conducted. Satisfactory agreement between the finite element models (FEM) and predictions of the rigid-plastic analysis is obtained, which verifies that the proposed rigid-plastic methods are effective to solve the problem including strain rate sensitivity and strain hardening. The quantitative results for the scale effect of the strain rate sensitivity are given. The results for the stiffening effects suggest that two general stiffening factors n 1 and n 2, which characterizes the strain rate sensitivity and strain hardening effect, respectively can be defined. The saturated displacement is inversely proportional to the stiffening factors (i.e. n 1 and n 2) and saturated impulse is inversely proportional to the square roots of the stiffening factors (i.e. n 1 and n 2). Formulae for displacement and saturated impulse are proposed based on the empirical analysis. |
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Latin American journal of solids and structures (Online) |
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Effects of the Strain Rate Sensitivity and Strain Hardening on the Saturated Impulse of PlatesSaturated ImpulseScale EffectStrain Rate SensitivityStrain HardeningAbstract This paper studies the stiffening effects of the material strain rate sensitivity and strain hardening on the saturated impulse of elastic, perfectly plastic plates. Finite element (FE) code ABAQUS is employed to simulate the elastoplastic response of square plates under rectangular pressure pulse. Rigid-plastic analyses for saturated impulse, which consider strain rate sensitivity and strain hardening, are conducted. Satisfactory agreement between the finite element models (FEM) and predictions of the rigid-plastic analysis is obtained, which verifies that the proposed rigid-plastic methods are effective to solve the problem including strain rate sensitivity and strain hardening. The quantitative results for the scale effect of the strain rate sensitivity are given. The results for the stiffening effects suggest that two general stiffening factors n 1 and n 2, which characterizes the strain rate sensitivity and strain hardening effect, respectively can be defined. The saturated displacement is inversely proportional to the stiffening factors (i.e. n 1 and n 2) and saturated impulse is inversely proportional to the square roots of the stiffening factors (i.e. n 1 and n 2). Formulae for displacement and saturated impulse are proposed based on the empirical analysis.Associação Brasileira de Ciências Mecânicas2017-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252017000701273Latin American Journal of Solids and Structures v.14 n.7 2017reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/1679-78253664info:eu-repo/semantics/openAccessZhu,LingHe,XuChen,F. L.Bai,Xueyueng2017-08-22T00:00:00Zoai:scielo:S1679-78252017000701273Revistahttp://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:2017-08-22T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false |
dc.title.none.fl_str_mv |
Effects of the Strain Rate Sensitivity and Strain Hardening on the Saturated Impulse of Plates |
title |
Effects of the Strain Rate Sensitivity and Strain Hardening on the Saturated Impulse of Plates |
spellingShingle |
Effects of the Strain Rate Sensitivity and Strain Hardening on the Saturated Impulse of Plates Zhu,Ling Saturated Impulse Scale Effect Strain Rate Sensitivity Strain Hardening |
title_short |
Effects of the Strain Rate Sensitivity and Strain Hardening on the Saturated Impulse of Plates |
title_full |
Effects of the Strain Rate Sensitivity and Strain Hardening on the Saturated Impulse of Plates |
title_fullStr |
Effects of the Strain Rate Sensitivity and Strain Hardening on the Saturated Impulse of Plates |
title_full_unstemmed |
Effects of the Strain Rate Sensitivity and Strain Hardening on the Saturated Impulse of Plates |
title_sort |
Effects of the Strain Rate Sensitivity and Strain Hardening on the Saturated Impulse of Plates |
author |
Zhu,Ling |
author_facet |
Zhu,Ling He,Xu Chen,F. L. Bai,Xueyu |
author_role |
author |
author2 |
He,Xu Chen,F. L. Bai,Xueyu |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Zhu,Ling He,Xu Chen,F. L. Bai,Xueyu |
dc.subject.por.fl_str_mv |
Saturated Impulse Scale Effect Strain Rate Sensitivity Strain Hardening |
topic |
Saturated Impulse Scale Effect Strain Rate Sensitivity Strain Hardening |
description |
Abstract This paper studies the stiffening effects of the material strain rate sensitivity and strain hardening on the saturated impulse of elastic, perfectly plastic plates. Finite element (FE) code ABAQUS is employed to simulate the elastoplastic response of square plates under rectangular pressure pulse. Rigid-plastic analyses for saturated impulse, which consider strain rate sensitivity and strain hardening, are conducted. Satisfactory agreement between the finite element models (FEM) and predictions of the rigid-plastic analysis is obtained, which verifies that the proposed rigid-plastic methods are effective to solve the problem including strain rate sensitivity and strain hardening. The quantitative results for the scale effect of the strain rate sensitivity are given. The results for the stiffening effects suggest that two general stiffening factors n 1 and n 2, which characterizes the strain rate sensitivity and strain hardening effect, respectively can be defined. The saturated displacement is inversely proportional to the stiffening factors (i.e. n 1 and n 2) and saturated impulse is inversely proportional to the square roots of the stiffening factors (i.e. n 1 and n 2). Formulae for displacement and saturated impulse are proposed based on the empirical analysis. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-08-01 |
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=S1679-78252017000701273 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252017000701273 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1679-78253664 |
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.7 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_ |
1754302889183936512 |