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Article: Evaluation of T-stress for cracks in elastic sheets

TitleEvaluation of T-stress for cracks in elastic sheets
Authors
KeywordsEigenfunction expansion
Finite element
Fractal
Interpolation
Stress intensity factor
T-stress
Issue Date2005
PublisherTechno-Press. The Journal's web site is located at http://technopress.kaist.ac.kr/?journal=sem&subpage=5
Citation
Structural Engineering And Mechanics, 2005, v. 20 n. 3, p. 335-346 How to Cite?
AbstractThe T-stress of cracks in elastic sheets is solved by using the fractal finite element method (FFEM). The FFEM, which had been developed to determine the stress intensity factors of cracks, is re-applied to evaluate the T-stress which is one of the important fracture parameters. The FFEM combines an exterior finite element model with a localized inner model near the crack tip. The mesh geometry of the latter is self-similar in radial layers around the tip. The higher order Williams series is used to condense the large numbers of nodal displacements at the inner model near the crack tip to a small set of unknown coefficients. Numerical examples revealed that the present approach is simple and accurate for calculating the T-stresses and the stress intensity factors. Some errors of the T-stress solutions shown in the previous literature are identified and the new solutions for the T-stress calculations are presented.
Persistent Identifierhttp://hdl.handle.net/10722/71557
ISSN
2015 Impact Factor: 1.021
2015 SCImago Journal Rankings: 0.450
References
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DC FieldValueLanguage
dc.contributor.authorSu, RKLen_HK
dc.date.accessioned2010-09-06T06:33:04Z-
dc.date.available2010-09-06T06:33:04Z-
dc.date.issued2005en_HK
dc.identifier.citationStructural Engineering And Mechanics, 2005, v. 20 n. 3, p. 335-346en_HK
dc.identifier.issn1225-4568en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71557-
dc.description.abstractThe T-stress of cracks in elastic sheets is solved by using the fractal finite element method (FFEM). The FFEM, which had been developed to determine the stress intensity factors of cracks, is re-applied to evaluate the T-stress which is one of the important fracture parameters. The FFEM combines an exterior finite element model with a localized inner model near the crack tip. The mesh geometry of the latter is self-similar in radial layers around the tip. The higher order Williams series is used to condense the large numbers of nodal displacements at the inner model near the crack tip to a small set of unknown coefficients. Numerical examples revealed that the present approach is simple and accurate for calculating the T-stresses and the stress intensity factors. Some errors of the T-stress solutions shown in the previous literature are identified and the new solutions for the T-stress calculations are presented.en_HK
dc.languageengen_HK
dc.publisherTechno-Press. The Journal's web site is located at http://technopress.kaist.ac.kr/?journal=sem&subpage=5en_HK
dc.relation.ispartofStructural Engineering and Mechanicsen_HK
dc.subjectEigenfunction expansionen_HK
dc.subjectFinite elementen_HK
dc.subjectFractalen_HK
dc.subjectInterpolationen_HK
dc.subjectStress intensity factoren_HK
dc.subjectT-stressen_HK
dc.titleEvaluation of T-stress for cracks in elastic sheetsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1225-4568&volume=20&issue=3&spage=335&epage=346&date=2005&atitle=Evaluation+of+T-stress+for+cracks+in+elastic+sheetsen_HK
dc.identifier.emailSu, RKL:klsu@hkucc.hku.hken_HK
dc.identifier.authoritySu, RKL=rp00072en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-27144451470en_HK
dc.identifier.hkuros98338en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-27144451470&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume20en_HK
dc.identifier.issue3en_HK
dc.identifier.spage335en_HK
dc.identifier.epage346en_HK
dc.publisher.placeKorea, Republic ofen_HK
dc.relation.projectInteraction of multiple branched cracks-
dc.identifier.scopusauthoridSu, RKL=7102627096en_HK

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