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dc.contributor.authorHosseini S.F.en_US
dc.contributor.authorHashemian A.en_US
dc.contributor.authorReali A.en_US
dc.date.accessioned2019-11-02T08:21:43Z
dc.date.available2019-11-02T08:21:43Z
dc.date.issued2019-11
dc.identifier.issn0045-7825
dc.identifier.urihttp://hdl.handle.net/20.500.11824/1038
dc.description.abstractThe present paper investigates the use of different knot placement techniques for isogeometric analysis of spatial curved beams, to enhance analysis results in cases when geometries are given in terms of data points. Focusing on analysis-aware modeling for structural static and vibration simulations of spatial free-form curved beams, the knot placement techniques based on uniformly spaced knots as well as on De Boor’s and Piegl and Tiller’s algorithms are studied. For this purpose, an isogeometric formulation for linear Euler–Bernoulli beams based on the Euler–Rodriguez transformation rule is implemented. Different case studies and numerical examples are presented and the results are validated against “overkill” solutions computed with a commercial finite element software. The results show that the De Boor’s knot placement algorithm typically leads to better approximation errors and is therefore the suggested strategy for this kind of problems.en_US
dc.formatapplication/pdfen_US
dc.language.isoengen_US
dc.publisherComputer Methods in Applied Mechanics and Engineeringen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/es/en_US
dc.subjectIsogeometric analysis; Analysis-aware modeling; Curve approximation; Knot placement techniques; Spatial free-form curved beamsen_US
dc.titleStudies on knot placement techniques for the geometry construction and the accurate simulation of isogeometric spatial curved beamsen_US
dc.typeinfo:eu-repo/semantics/articleen_US
dc.typeinfo:eu-repo/semantics/publishedVersionen_US
dc.identifier.doi10.1016/j.cma.2019.112705
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0045782519305936en_US


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