Linear and curvature internal heterogeneous boundaries influences on mixed mode crack propagation using level set method

Interactive crack-internal heterogeneous boundaries have been of a great concern to researchers and engineers. Extended finite element method (X-FEM) has recently emerged as an approach to implicitly create a discontinuity based on discontinuous partition of unity enrichment (PUM) of the standard fi...

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Autor principal:	Abdolghafour Khademalrasoul
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2017
Materias:	extended finite element method level set method interfaces crack propagation interaction integral Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/33b49605c7de494bb1a8b4e86d1cdbbf
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id	oai:doaj.org-article:33b49605c7de494bb1a8b4e86d1cdbbf
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spelling	oai:doaj.org-article:33b49605c7de494bb1a8b4e86d1cdbbf2021-11-08T15:46:44ZLinear and curvature internal heterogeneous boundaries influences on mixed mode crack propagation using level set method2476-39772538-261610.22065/jsce.2017.67302.1001https://doaj.org/article/33b49605c7de494bb1a8b4e86d1cdbbf2017-11-01T00:00:00Zhttps://www.jsce.ir/article_45909_affc9408002a6ed49b7e90e7b56d6415.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Interactive crack-internal heterogeneous boundaries have been of a great concern to researchers and engineers. Extended finite element method (X-FEM) has recently emerged as an approach to implicitly create a discontinuity based on discontinuous partition of unity enrichment (PUM) of the standard finite element approximation spaces. The extended finite element method (X-FEM) in the combination with level set method (LSM) has been utilized. In this contribution, predefined cracks and internal boundaries are created without meshing the internal boundaries. Soft/hard circular inclusions (interfaces), voids and linear interfaces are considered as internal discontinuities. In addition, the stress intensity factors for mixed mode crack problems are numerically calculated by using interaction integral approach. The interaction integral method is based on the path independent J-integral. The 4-noded rectangular element is considered to discretize the assumed plates. The effects of shape, size and schemes of internal boundary distributions are numerically simulated. The results are shown that the crack paths are attracted to soft internal boundaries and move away from the hard internal boundaries. Also, the influences of internal voids are much more than inclusions. In addition, the linear internal interface has affected the crack growth paths entirely and is created a complicate crack path. All numerical examples are demonstrated the flexibility and capabilities of X-FEM in the applied fracture mechanicsAbdolghafour KhademalrasoulIranian Society of Structrual Engineering (ISSE)articleextended finite element methodlevel set methodinterfacescrack propagationinteraction integralBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 4, Iss 3, Pp 42-54 (2017)
institution	DOAJ
collection	DOAJ
language	FA
topic	extended finite element method level set method interfaces crack propagation interaction integral Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	extended finite element method level set method interfaces crack propagation interaction integral Bridge engineering TG1-470 Building construction TH1-9745 Abdolghafour Khademalrasoul Linear and curvature internal heterogeneous boundaries influences on mixed mode crack propagation using level set method
description	Interactive crack-internal heterogeneous boundaries have been of a great concern to researchers and engineers. Extended finite element method (X-FEM) has recently emerged as an approach to implicitly create a discontinuity based on discontinuous partition of unity enrichment (PUM) of the standard finite element approximation spaces. The extended finite element method (X-FEM) in the combination with level set method (LSM) has been utilized. In this contribution, predefined cracks and internal boundaries are created without meshing the internal boundaries. Soft/hard circular inclusions (interfaces), voids and linear interfaces are considered as internal discontinuities. In addition, the stress intensity factors for mixed mode crack problems are numerically calculated by using interaction integral approach. The interaction integral method is based on the path independent J-integral. The 4-noded rectangular element is considered to discretize the assumed plates. The effects of shape, size and schemes of internal boundary distributions are numerically simulated. The results are shown that the crack paths are attracted to soft internal boundaries and move away from the hard internal boundaries. Also, the influences of internal voids are much more than inclusions. In addition, the linear internal interface has affected the crack growth paths entirely and is created a complicate crack path. All numerical examples are demonstrated the flexibility and capabilities of X-FEM in the applied fracture mechanics
format	article
author	Abdolghafour Khademalrasoul
author_facet	Abdolghafour Khademalrasoul
author_sort	Abdolghafour Khademalrasoul
title	Linear and curvature internal heterogeneous boundaries influences on mixed mode crack propagation using level set method
title_short	Linear and curvature internal heterogeneous boundaries influences on mixed mode crack propagation using level set method
title_full	Linear and curvature internal heterogeneous boundaries influences on mixed mode crack propagation using level set method
title_fullStr	Linear and curvature internal heterogeneous boundaries influences on mixed mode crack propagation using level set method
title_full_unstemmed	Linear and curvature internal heterogeneous boundaries influences on mixed mode crack propagation using level set method
title_sort	linear and curvature internal heterogeneous boundaries influences on mixed mode crack propagation using level set method
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2017
url	https://doaj.org/article/33b49605c7de494bb1a8b4e86d1cdbbf
work_keys_str_mv	AT abdolghafourkhademalrasoul linearandcurvatureinternalheterogeneousboundariesinfluencesonmixedmodecrackpropagationusinglevelsetmethod
_version_	1718441647523495936

Linear and curvature internal heterogeneous boundaries influences on mixed mode crack propagation using level set method

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