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Article: A new family of elements for h-type adaptive analysis for shell problems

TitleA new family of elements for h-type adaptive analysis for shell problems
Authors
KeywordsAdaptive
Assumed Natural Strain
Finite Element
Hybrid-Stress
Shell
Issue Date2011
Citation
Jisuan Lixue Xuebao/Chinese Journal Of Computational Mechanics, 2011, v. 28 n. 3, p. 473-478 How to Cite?
AbstractIn this paper, a new family of degenerated shell elements being suitable for h-type adaptive analysis is presented. For most of shell structures, the stiffness matrix of the shell element can be split into membrane, bending and shear stiffness matrices. For the membrane part, the membrane stresses are independently assumed and the pertinent stiffness matrix is obtained by the hybrid element method to improve the accuracy of membrane stresses. For the bending part, displacement-based strain is kept intact and used to formulate the corresponding stiffness matrix. For the shear part, the assumed natural strain method is employed to construct the shear strains to obtain pertinent stiffness matrix and overcome shear locking for thin shell problems. Several numerical examples are presented. With the newly developed element family, more regular meshes are generated and the convergence rate is higher than those yielded by using other element families.
Persistent Identifierhttp://hdl.handle.net/10722/157135
ISSN
2015 SCImago Journal Rankings: 0.337
References

 

DC FieldValueLanguage
dc.contributor.authorWu, Den_US
dc.contributor.authorSze, KYen_US
dc.date.accessioned2012-08-08T08:45:28Z-
dc.date.available2012-08-08T08:45:28Z-
dc.date.issued2011en_US
dc.identifier.citationJisuan Lixue Xuebao/Chinese Journal Of Computational Mechanics, 2011, v. 28 n. 3, p. 473-478en_US
dc.identifier.issn1007-4708en_US
dc.identifier.urihttp://hdl.handle.net/10722/157135-
dc.description.abstractIn this paper, a new family of degenerated shell elements being suitable for h-type adaptive analysis is presented. For most of shell structures, the stiffness matrix of the shell element can be split into membrane, bending and shear stiffness matrices. For the membrane part, the membrane stresses are independently assumed and the pertinent stiffness matrix is obtained by the hybrid element method to improve the accuracy of membrane stresses. For the bending part, displacement-based strain is kept intact and used to formulate the corresponding stiffness matrix. For the shear part, the assumed natural strain method is employed to construct the shear strains to obtain pertinent stiffness matrix and overcome shear locking for thin shell problems. Several numerical examples are presented. With the newly developed element family, more regular meshes are generated and the convergence rate is higher than those yielded by using other element families.en_US
dc.languageengen_US
dc.relation.ispartofJisuan Lixue Xuebao/Chinese Journal of Computational Mechanicsen_US
dc.subjectAdaptiveen_US
dc.subjectAssumed Natural Strainen_US
dc.subjectFinite Elementen_US
dc.subjectHybrid-Stressen_US
dc.subjectShellen_US
dc.titleA new family of elements for h-type adaptive analysis for shell problemsen_US
dc.typeArticleen_US
dc.identifier.emailSze, KY:szeky@graduate.hku.hken_US
dc.identifier.authoritySze, KY=rp00171en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-79960874354en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79960874354&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume28en_US
dc.identifier.issue3en_US
dc.identifier.spage473en_US
dc.identifier.epage478en_US
dc.identifier.scopusauthoridWu, D=26638590700en_US
dc.identifier.scopusauthoridSze, KY=7006735060en_US

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