An Efficient Anti-Optimization Approach for Uncertainty Analysis in Composite Laminates
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Materials research (São Carlos. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000800207 |
Resumo: | Abstract This work presents an efficient approach to quantify uncertainties in composite laminates using the interval analysis, anti-optimization technique, and the α-cut procedure. The solutions are compared with the traditional and robust Monte Carlo method in 3 cases scenarios: natural frequencies, buckling, and strength safe factor. For natural frequencies and buckling loads, the presented Interval based methodology showed 2.5% to 4.5% larger error values when compared to the Monte Carlo method using the same number of function calls. This implies a larger uncertain area, and hence, a better solution. For the strength test using Tsai-Wu failure theory, the error values are even greater: 22% to 46%. A violation of the failure limit was detected by the proposed Interval based approach, but not detected by Monte Carlo method. The solutions show that the presented methodology yields a safer and more precise analysis when compared to the traditional Monte Carlo approach. |
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An Efficient Anti-Optimization Approach for Uncertainty Analysis in Composite LaminatesAnti-optimizationlaminated compositesinterval-based uncertainty analysisconvex hullAbstract This work presents an efficient approach to quantify uncertainties in composite laminates using the interval analysis, anti-optimization technique, and the α-cut procedure. The solutions are compared with the traditional and robust Monte Carlo method in 3 cases scenarios: natural frequencies, buckling, and strength safe factor. For natural frequencies and buckling loads, the presented Interval based methodology showed 2.5% to 4.5% larger error values when compared to the Monte Carlo method using the same number of function calls. This implies a larger uncertain area, and hence, a better solution. For the strength test using Tsai-Wu failure theory, the error values are even greater: 22% to 46%. A violation of the failure limit was detected by the proposed Interval based approach, but not detected by Monte Carlo method. The solutions show that the presented methodology yields a safer and more precise analysis when compared to the traditional Monte Carlo approach.ABM, ABC, ABPol2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000800207Materials Research v.24 suppl.2 2021reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2021-0334info:eu-repo/semantics/openAccessSantana,Pedro BührerGrotti,EwertonGomes,Herbert Martinseng2021-10-19T00:00:00Zoai:scielo:S1516-14392021000800207Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2021-10-19T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
An Efficient Anti-Optimization Approach for Uncertainty Analysis in Composite Laminates |
title |
An Efficient Anti-Optimization Approach for Uncertainty Analysis in Composite Laminates |
spellingShingle |
An Efficient Anti-Optimization Approach for Uncertainty Analysis in Composite Laminates Santana,Pedro Bührer Anti-optimization laminated composites interval-based uncertainty analysis convex hull |
title_short |
An Efficient Anti-Optimization Approach for Uncertainty Analysis in Composite Laminates |
title_full |
An Efficient Anti-Optimization Approach for Uncertainty Analysis in Composite Laminates |
title_fullStr |
An Efficient Anti-Optimization Approach for Uncertainty Analysis in Composite Laminates |
title_full_unstemmed |
An Efficient Anti-Optimization Approach for Uncertainty Analysis in Composite Laminates |
title_sort |
An Efficient Anti-Optimization Approach for Uncertainty Analysis in Composite Laminates |
author |
Santana,Pedro Bührer |
author_facet |
Santana,Pedro Bührer Grotti,Ewerton Gomes,Herbert Martins |
author_role |
author |
author2 |
Grotti,Ewerton Gomes,Herbert Martins |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Santana,Pedro Bührer Grotti,Ewerton Gomes,Herbert Martins |
dc.subject.por.fl_str_mv |
Anti-optimization laminated composites interval-based uncertainty analysis convex hull |
topic |
Anti-optimization laminated composites interval-based uncertainty analysis convex hull |
description |
Abstract This work presents an efficient approach to quantify uncertainties in composite laminates using the interval analysis, anti-optimization technique, and the α-cut procedure. The solutions are compared with the traditional and robust Monte Carlo method in 3 cases scenarios: natural frequencies, buckling, and strength safe factor. For natural frequencies and buckling loads, the presented Interval based methodology showed 2.5% to 4.5% larger error values when compared to the Monte Carlo method using the same number of function calls. This implies a larger uncertain area, and hence, a better solution. For the strength test using Tsai-Wu failure theory, the error values are even greater: 22% to 46%. A violation of the failure limit was detected by the proposed Interval based approach, but not detected by Monte Carlo method. The solutions show that the presented methodology yields a safer and more precise analysis when compared to the traditional Monte Carlo approach. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-01 |
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=S1516-14392021000800207 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000800207 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1980-5373-mr-2021-0334 |
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 |
ABM, ABC, ABPol |
publisher.none.fl_str_mv |
ABM, ABC, ABPol |
dc.source.none.fl_str_mv |
Materials Research v.24 suppl.2 2021 reponame:Materials research (São Carlos. Online) instname:Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
instname_str |
Universidade Federal de São Carlos (UFSCAR) |
instacron_str |
ABM ABC ABPOL |
institution |
ABM ABC ABPOL |
reponame_str |
Materials research (São Carlos. Online) |
collection |
Materials research (São Carlos. Online) |
repository.name.fl_str_mv |
Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR) |
repository.mail.fl_str_mv |
dedz@power.ufscar.br |
_version_ |
1754212679859306496 |