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Article: On using different recovery procedures for the construction of smoothed stress in finite element method

TitleOn using different recovery procedures for the construction of smoothed stress in finite element method
Authors
KeywordsEquilibrium and boundary constraints
Recovery by equilibrium in patches
Stress recovery
Superconvergent patch recovery technique
Issue Date1998
PublisherJohn Wiley & Sons Ltd. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/1430
Citation
International Journal For Numerical Methods In Engineering, 1998, v. 43 n. 7, p. 1223-1252 How to Cite?
AbstractThe performance of three different stress recovery procedures, namely, the superconvergent patch recovery technique (SPR), the recovery by equilibrium in patches (REP) and a combined method known as the LP procedure is reviewed. Different order of polynomials and various patch formation strategies have been employed in the numerical studies for the construction of smoothed stress fields. Two 2-D elastostatic problems of different characteristics are used to assess the behaviour of the stress recovery procedures. The numerical results obtained indicate that when the order of polynomial used in the recovery procedure is equal to that of the finite element analysis, the behaviours of all three recovery procedures are very similar and all of them are adequate to provide a reliable recovered stress field for error estimation. In case that the order of polynomial of the recovered stress is increased, the LP procedure seems to give a more stable recovery matrix and a more reliable recovered stress field than the REP procedure. © 1998 John Wiley & Sons, Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/71189
ISSN
2015 Impact Factor: 2.1
2015 SCImago Journal Rankings: 2.007
References

 

DC FieldValueLanguage
dc.contributor.authorLo, SHen_HK
dc.contributor.authorLee, CKen_HK
dc.date.accessioned2010-09-06T06:29:44Z-
dc.date.available2010-09-06T06:29:44Z-
dc.date.issued1998en_HK
dc.identifier.citationInternational Journal For Numerical Methods In Engineering, 1998, v. 43 n. 7, p. 1223-1252en_HK
dc.identifier.issn0029-5981en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71189-
dc.description.abstractThe performance of three different stress recovery procedures, namely, the superconvergent patch recovery technique (SPR), the recovery by equilibrium in patches (REP) and a combined method known as the LP procedure is reviewed. Different order of polynomials and various patch formation strategies have been employed in the numerical studies for the construction of smoothed stress fields. Two 2-D elastostatic problems of different characteristics are used to assess the behaviour of the stress recovery procedures. The numerical results obtained indicate that when the order of polynomial used in the recovery procedure is equal to that of the finite element analysis, the behaviours of all three recovery procedures are very similar and all of them are adequate to provide a reliable recovered stress field for error estimation. In case that the order of polynomial of the recovered stress is increased, the LP procedure seems to give a more stable recovery matrix and a more reliable recovered stress field than the REP procedure. © 1998 John Wiley & Sons, Ltd.en_HK
dc.languageengen_HK
dc.publisherJohn Wiley & Sons Ltd. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/1430en_HK
dc.relation.ispartofInternational Journal for Numerical Methods in Engineeringen_HK
dc.rightsInternational Journal for Numerical Methods in Engineering. Copyright © John Wiley & Sons Ltd.en_HK
dc.subjectEquilibrium and boundary constraintsen_HK
dc.subjectRecovery by equilibrium in patchesen_HK
dc.subjectStress recoveryen_HK
dc.subjectSuperconvergent patch recovery techniqueen_HK
dc.titleOn using different recovery procedures for the construction of smoothed stress in finite element methoden_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0029-5981&volume=43&spage=1223 &epage= 1252&date=1998&atitle=On+using+different+recovery+procedures+for+the+construction+of+smoothed+stress+in+finite+element+methoden_HK
dc.identifier.emailLo, SH:hreclsh@hkucc.hku.hken_HK
dc.identifier.authorityLo, SH=rp00223en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-0032302147en_HK
dc.identifier.hkuros42581en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0032302147&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume43en_HK
dc.identifier.issue7en_HK
dc.identifier.spage1223en_HK
dc.identifier.epage1252en_HK
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridLo, SH=7401542444en_HK
dc.identifier.scopusauthoridLee, CK=7410141092en_HK

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