Isogeometric plate element for unstiffened and blade stiffened laminates based on refined zigzag theory

Kazim Ahmet Hasim; Adnan Kefal; Erdogan Madenci

doi:10.1016/j.compstruct.2019.110931

Isogeometric plate element for unstiffened and blade stiffened laminates based on refined zigzag theory

Kazim Ahmet Hasim, Adnan Kefal, Erdogan Madenci

Aerospace and Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

This study presents an isogeometric plate element, IG-RZT based on the refined zigzag theory (RZT)to model bending behavior of blade stiffened and unstiffened thick or thin laminates. This element is free of shear-locking and shear correction factors due to the use of Non-Uniform Rational B-Splines (NURBS)functions which satisfy the requirement of C¹ continuity in the computation of transverse shear stresses. Comparison of the predictions with IG-RZT element with the previous benchmark solutions reveals fast convergence and high accuracy for general laminate layups under different loading and boundary conditions. Thus, the IG-RZT element can be adopted for computationally efficient and accurate analysis of unstiffened and stiffened flat laminates.

Original language	English (US)
Article number	110931
Journal	Composite Structures
Volume	222
DOIs	https://doi.org/10.1016/j.compstruct.2019.110931
State	Published - Aug 15 2019

Keywords

Composite
Finite element
Flat shells
Isogeometric
Single-layer theory
Zigzag functions

ASJC Scopus subject areas

Ceramics and Composites
Civil and Structural Engineering

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10.1016/j.compstruct.2019.110931

Cite this

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title = "Isogeometric plate element for unstiffened and blade stiffened laminates based on refined zigzag theory",

abstract = "This study presents an isogeometric plate element, IG-RZT based on the refined zigzag theory (RZT)to model bending behavior of blade stiffened and unstiffened thick or thin laminates. This element is free of shear-locking and shear correction factors due to the use of Non-Uniform Rational B-Splines (NURBS)functions which satisfy the requirement of C1 continuity in the computation of transverse shear stresses. Comparison of the predictions with IG-RZT element with the previous benchmark solutions reveals fast convergence and high accuracy for general laminate layups under different loading and boundary conditions. Thus, the IG-RZT element can be adopted for computationally efficient and accurate analysis of unstiffened and stiffened flat laminates.",

keywords = "Composite, Finite element, Flat shells, Isogeometric, Single-layer theory, Zigzag functions",

author = "Hasim, {Kazim Ahmet} and Adnan Kefal and Erdogan Madenci",

note = "Funding Information: This study was supported by the Scientific and Technological Research Council of Turkey, TUBITAK . Also, Drs. K. A. Hasim and A. Kefal acknowledge, respectively, the funding from International Postdoctoral Research Scholarship Program (BIDEB 2219) and Istanbul Technical University BAP Project ( MAB-2018-41617 ). Funding Information: This study was supported by the Scientific and Technological Research Council of Turkey, TUBITAK. Also, Drs. K. A. Hasim and A. Kefal acknowledge, respectively, the funding from International Postdoctoral Research Scholarship Program (BIDEB 2219)and Istanbul Technical University BAP Project (MAB-2018-41617). Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2019",

month = aug,

day = "15",

doi = "10.1016/j.compstruct.2019.110931",

language = "English (US)",

volume = "222",

journal = "Composite Structures",

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publisher = "Elsevier BV",

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T1 - Isogeometric plate element for unstiffened and blade stiffened laminates based on refined zigzag theory

AU - Hasim, Kazim Ahmet

AU - Kefal, Adnan

AU - Madenci, Erdogan

N1 - Funding Information: This study was supported by the Scientific and Technological Research Council of Turkey, TUBITAK . Also, Drs. K. A. Hasim and A. Kefal acknowledge, respectively, the funding from International Postdoctoral Research Scholarship Program (BIDEB 2219) and Istanbul Technical University BAP Project ( MAB-2018-41617 ). Funding Information: This study was supported by the Scientific and Technological Research Council of Turkey, TUBITAK. Also, Drs. K. A. Hasim and A. Kefal acknowledge, respectively, the funding from International Postdoctoral Research Scholarship Program (BIDEB 2219)and Istanbul Technical University BAP Project (MAB-2018-41617). Publisher Copyright: © 2019 Elsevier Ltd

PY - 2019/8/15

Y1 - 2019/8/15

N2 - This study presents an isogeometric plate element, IG-RZT based on the refined zigzag theory (RZT)to model bending behavior of blade stiffened and unstiffened thick or thin laminates. This element is free of shear-locking and shear correction factors due to the use of Non-Uniform Rational B-Splines (NURBS)functions which satisfy the requirement of C1 continuity in the computation of transverse shear stresses. Comparison of the predictions with IG-RZT element with the previous benchmark solutions reveals fast convergence and high accuracy for general laminate layups under different loading and boundary conditions. Thus, the IG-RZT element can be adopted for computationally efficient and accurate analysis of unstiffened and stiffened flat laminates.

AB - This study presents an isogeometric plate element, IG-RZT based on the refined zigzag theory (RZT)to model bending behavior of blade stiffened and unstiffened thick or thin laminates. This element is free of shear-locking and shear correction factors due to the use of Non-Uniform Rational B-Splines (NURBS)functions which satisfy the requirement of C1 continuity in the computation of transverse shear stresses. Comparison of the predictions with IG-RZT element with the previous benchmark solutions reveals fast convergence and high accuracy for general laminate layups under different loading and boundary conditions. Thus, the IG-RZT element can be adopted for computationally efficient and accurate analysis of unstiffened and stiffened flat laminates.

KW - Composite

KW - Finite element

KW - Flat shells

KW - Isogeometric

KW - Single-layer theory

KW - Zigzag functions

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Isogeometric plate element for unstiffened and blade stiffened laminates based on refined zigzag theory

Abstract

Keywords

ASJC Scopus subject areas

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Isogeometric plate element for unstiffened and blade stiffened laminates based on refined zigzag theory

Abstract

Keywords

ASJC Scopus subject areas

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Data for: Isogeometric Plate Element for Unstiffened and Blade Stiffened Laminates Based on Refined Zigzag Theory

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