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A substructured FE‐shell/XFE‐3D method for crack analysis in thin‐walled structures
Author(s) -
Wyart E.,
Coulon D.,
Duflot M.,
Pardoen T.,
Remacle J.F.,
Lani F.
Publication year - 2007
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.2029
Subject(s) - finite element method , tearing , shell (structure) , structural engineering , domain (mathematical analysis) , element (criminal law) , extended finite element method , code (set theory) , stress (linguistics) , materials science , mathematics , computer science , engineering , composite material , mathematical analysis , programming language , linguistics , philosophy , set (abstract data type) , political science , law
Stress intensity factors in thin‐walled cracked structures are computed using a mixed‐dimensional finite element (FE) shell/extended finite element (XFE) 3D formulation. The present approach belongs to the family of ‘substructuring’ methods. The domain is decomposed into cracked and safe subdomains which are solved by the XFE‐code and the FE‐software, respectively. The XFE‐3D domain may contain cracks that do not necessarily join the top and bottom faces of the plate. The interface problem is solved using the finite element tearing and interconnecting method. Several validations are provided. Copyright © 2007 John Wiley & Sons, Ltd.