Numerical simulation of dynamic brittle fracture of pipeline steel subjected to DWTT using XFEM-based cohesive segment technique

Numerical simulation of dynamic brittle fracture of pipeline steel subjected to DWTT using XFEM-based cohesive segment technique

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In the past several numerical studies have addressed the ductile mode of fracture propagation. However, the brittle mode of pipeline failure has not received as much attention yet. The main objective of this study is to predict brittle fracture behaviour of API X70 pipeline steel by means of a nume...

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Bibliographic Details
Main Author: Reza H. Talemi
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2016-03-01
Series:Frattura ed Integrità Strutturale
Subjects:
Dynamic brittle fracture
Pipeline steel
Cohesive segment
Online Access:https://www.fracturae.com/index.php/fis/article/view/1704
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spelling doaj-d85057c4ff16426ab8435144eefdc7e92021-01-27T17:16:08ZengGruppo Italiano FratturaFrattura ed Integrità Strutturale1971-89932016-03-011036Numerical simulation of dynamic brittle fracture of pipeline steel subjected to DWTT using XFEM-based cohesive segment techniqueReza H. Talemi In the past several numerical studies have addressed the ductile mode of fracture propagation. However, the brittle mode of pipeline failure has not received as much attention yet. The main objective of this study is to predict brittle fracture behaviour of API X70 pipeline steel by means of a numerical approach. To this end, the eXtended Finite Element Method (XFEM)-based cohesive segment technique is used to model Drop Weight Tear Test (DWTT) of X70 pipeline steel at -100°C. In this model the dynamic stress intensity factor and crack velocity are calculated at the crack tip at each step of crack propagation. https://www.fracturae.com/index.php/fis/article/view/1704Dynamic brittle fracturePipeline steelCohesive segment
collection DOAJ
language English
format Article
sources DOAJ
author Reza H. Talemi
spellingShingle Reza H. Talemi
Numerical simulation of dynamic brittle fracture of pipeline steel subjected to DWTT using XFEM-based cohesive segment technique
Frattura ed Integrità Strutturale
Dynamic brittle fracture
Pipeline steel
Cohesive segment
author_facet Reza H. Talemi
author_sort Reza H. Talemi
title Numerical simulation of dynamic brittle fracture of pipeline steel subjected to DWTT using XFEM-based cohesive segment technique
title_short Numerical simulation of dynamic brittle fracture of pipeline steel subjected to DWTT using XFEM-based cohesive segment technique
title_full Numerical simulation of dynamic brittle fracture of pipeline steel subjected to DWTT using XFEM-based cohesive segment technique
title_fullStr Numerical simulation of dynamic brittle fracture of pipeline steel subjected to DWTT using XFEM-based cohesive segment technique
title_full_unstemmed Numerical simulation of dynamic brittle fracture of pipeline steel subjected to DWTT using XFEM-based cohesive segment technique
title_sort numerical simulation of dynamic brittle fracture of pipeline steel subjected to dwtt using xfem-based cohesive segment technique
publisher Gruppo Italiano Frattura
series Frattura ed Integrità Strutturale
issn 1971-8993
publishDate 2016-03-01
description In the past several numerical studies have addressed the ductile mode of fracture propagation. However, the brittle mode of pipeline failure has not received as much attention yet. The main objective of this study is to predict brittle fracture behaviour of API X70 pipeline steel by means of a numerical approach. To this end, the eXtended Finite Element Method (XFEM)-based cohesive segment technique is used to model Drop Weight Tear Test (DWTT) of X70 pipeline steel at -100°C. In this model the dynamic stress intensity factor and crack velocity are calculated at the crack tip at each step of crack propagation.
topic Dynamic brittle fracture
Pipeline steel
Cohesive segment
url https://www.fracturae.com/index.php/fis/article/view/1704
work_keys_str_mv AT rezahtalemi numericalsimulationofdynamicbrittlefractureofpipelinesteelsubjectedtodwttusingxfembasedcohesivesegmenttechnique
_version_ 1724320676701011968

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