A New Displacement-based Approach to Calculate Stress Intensity Factors With the Boundary Element Method
Autor(a) principal: | |
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Data de Publicação: | 2015 |
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=S1679-78252015000901677 |
Resumo: | Abstract The analysis of cracked brittle mechanical components considering linear elastic fracture mechanics is usually reduced to the evaluation of stress intensity factors (SIFs). The SIF calculation can be carried out experimentally, theoretically or numerically. Each methodology has its own advantages but the use of numerical methods has become very popular. Several schemes for numerical SIF calculations have been developed, the J-integral method being one of the most widely used because of its energy-like formulation. Additionally, some variations of the J-integral method, such as displacement-based methods, are also becoming popular due to their simplicity. In this work, a simple displacement-based scheme is proposed to calculate SIFs, and its performance is compared with contour integrals. These schemes are all implemented with the Boundary Element Method (BEM) in order to exploit its advantages in crack growth modelling. Some simple examples are solved with the BEM and the calculated SIF values are compared against available solutions, showing good agreement between the different schemes. |
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Latin American journal of solids and structures (Online) |
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A New Displacement-based Approach to Calculate Stress Intensity Factors With the Boundary Element MethodBoundary Element Methodstress intensity factorsdisplacement techniquesJ-integralAbstract The analysis of cracked brittle mechanical components considering linear elastic fracture mechanics is usually reduced to the evaluation of stress intensity factors (SIFs). The SIF calculation can be carried out experimentally, theoretically or numerically. Each methodology has its own advantages but the use of numerical methods has become very popular. Several schemes for numerical SIF calculations have been developed, the J-integral method being one of the most widely used because of its energy-like formulation. Additionally, some variations of the J-integral method, such as displacement-based methods, are also becoming popular due to their simplicity. In this work, a simple displacement-based scheme is proposed to calculate SIFs, and its performance is compared with contour integrals. These schemes are all implemented with the Boundary Element Method (BEM) in order to exploit its advantages in crack growth modelling. Some simple examples are solved with the BEM and the calculated SIF values are compared against available solutions, showing good agreement between the different schemes.Associação Brasileira de Ciências Mecânicas2015-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252015000901677Latin American Journal of Solids and Structures v.12 n.9 2015reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/1679-78251495info:eu-repo/semantics/openAccessGonzalez,MarcoTeixeira,PauloWrobel,Luiz C.Martinez,Manueleng2015-11-17T00:00:00Zoai:scielo:S1679-78252015000901677Revistahttp://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:2015-11-17T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false |
dc.title.none.fl_str_mv |
A New Displacement-based Approach to Calculate Stress Intensity Factors With the Boundary Element Method |
title |
A New Displacement-based Approach to Calculate Stress Intensity Factors With the Boundary Element Method |
spellingShingle |
A New Displacement-based Approach to Calculate Stress Intensity Factors With the Boundary Element Method Gonzalez,Marco Boundary Element Method stress intensity factors displacement techniques J-integral |
title_short |
A New Displacement-based Approach to Calculate Stress Intensity Factors With the Boundary Element Method |
title_full |
A New Displacement-based Approach to Calculate Stress Intensity Factors With the Boundary Element Method |
title_fullStr |
A New Displacement-based Approach to Calculate Stress Intensity Factors With the Boundary Element Method |
title_full_unstemmed |
A New Displacement-based Approach to Calculate Stress Intensity Factors With the Boundary Element Method |
title_sort |
A New Displacement-based Approach to Calculate Stress Intensity Factors With the Boundary Element Method |
author |
Gonzalez,Marco |
author_facet |
Gonzalez,Marco Teixeira,Paulo Wrobel,Luiz C. Martinez,Manuel |
author_role |
author |
author2 |
Teixeira,Paulo Wrobel,Luiz C. Martinez,Manuel |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Gonzalez,Marco Teixeira,Paulo Wrobel,Luiz C. Martinez,Manuel |
dc.subject.por.fl_str_mv |
Boundary Element Method stress intensity factors displacement techniques J-integral |
topic |
Boundary Element Method stress intensity factors displacement techniques J-integral |
description |
Abstract The analysis of cracked brittle mechanical components considering linear elastic fracture mechanics is usually reduced to the evaluation of stress intensity factors (SIFs). The SIF calculation can be carried out experimentally, theoretically or numerically. Each methodology has its own advantages but the use of numerical methods has become very popular. Several schemes for numerical SIF calculations have been developed, the J-integral method being one of the most widely used because of its energy-like formulation. Additionally, some variations of the J-integral method, such as displacement-based methods, are also becoming popular due to their simplicity. In this work, a simple displacement-based scheme is proposed to calculate SIFs, and its performance is compared with contour integrals. These schemes are all implemented with the Boundary Element Method (BEM) in order to exploit its advantages in crack growth modelling. Some simple examples are solved with the BEM and the calculated SIF values are compared against available solutions, showing good agreement between the different schemes. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-09-01 |
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=S1679-78252015000901677 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252015000901677 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1679-78251495 |
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.12 n.9 2015 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_ |
1754302888060911616 |