A novel isogeometric beam element based on mixed form of refined zigzag theory for thick sandwich and multilayered composite beams

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dc.authoridYildiz, Mehmet/0000-0003-1626-5858
dc.authoridHasim, Kazim Ahmet/0000-0003-3750-060X
dc.authoridKefal, Adnan/0000-0002-4139-999X
dc.contributor.authorKefal, Adnan
dc.contributor.authorHasim, Kazim Ahmet
dc.contributor.authorYildiz, Mehmet
dc.date.accessioned2025-01-06T17:43:21Z
dc.date.available2025-01-06T17:43:21Z
dc.date.issued2019
dc.description.abstractThis study presents a highly accurate, computationally efficient, and novel isogeometric beam element, named as IG - RZT((m)), whose formulation is derived by using the kinematic assumptions and a priori transverse-shear stress continuity conditions of mixed form of the refined zigzag theory, known as RZT((m)). Both the displacement field and geometry of the beam is approximated by using non-rational B-spline (NURBS) basis functions and the IG - RZT((m)) element accommodates only four degrees-of-freedom at each control point. Since the present formulation incorporates isogeometric analysis into the RZT((m)) theory, it provides various advantages for displacement and stress analysis of thin/thick composite beams such as high-order continuity representation and simple mesh refinement. Furthermore, the utilization of RZT((m)) theory within the current beam formulation enables the calculation of nonlinear transverse-shear stress variations through the thickness of highly anisotropic beams without any post-processing. Various numerical analysis are performed to validate the accuracy of the IG - RZT((m)) element and its wide range of applicability including beams with a resin-rich damage zone. Comparisons with analytic solutions and high-fidelity finite element models demonstrate the superior accuracy and practical applicability of the present formulation, especially making the IG - RZT((m)) element as an attractive candidate for modelling delamination initiation and propagation in composite structures.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [217M207]; Istanbul Technical University through BAP Project [MAB-2018-41617]; TUBITAK (The Scientific and Technological Research Council of Turkey); Sabanci University [IAKM-17-01731]
dc.description.sponsorshipThe financial support provided by the Scientific and Technological Research Council of Turkey (TUBITAK) under the grant No: 217M207 is greatly acknowledged. Adnan Kefal greatly acknowledges the financial support provided by Istanbul Technical University through BAP Project (MAB-2018-41617). TUBITAK (The Scientific and Technological Research Council of Turkey) is greatly acknowledged for granting the postdoctoral study of Kazim Ahmet Hasim in the framework of BIDEB 2219-International Postdoctoral Research Scholarship Program. Mehmet Yildiz greatly acknowledges the financial support provided by Sabanci University through Internal Project (IAKM-17-01731).
dc.identifier.doi10.1016/j.compositesb.2018.11.102
dc.identifier.endpage121
dc.identifier.issn1359-8368
dc.identifier.issn1879-1069
dc.identifier.scopus2-s2.0-85058380671
dc.identifier.scopusqualityQ1
dc.identifier.startpage100
dc.identifier.urihttps://doi.org/10.1016/j.compositesb.2018.11.102
dc.identifier.urihttps://hdl.handle.net/20.500.14669/2638
dc.identifier.volume167
dc.identifier.wosWOS:000465060200012
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofComposites Part B-Engineering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectIsogeometric analysis (IGA)
dc.subjectRefined zigzag theory (RZT)
dc.subjectNon-rational b-splines
dc.subjectDelamination
dc.subjectSandwich beams
dc.subjectComposite beams
dc.titleA novel isogeometric beam element based on mixed form of refined zigzag theory for thick sandwich and multilayered composite beams
dc.typeArticle

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