Isogeometric analysis of large-deformation thin shells using RHT-splines for multiple-patch coupling

N. Nguyen-Thanh, K. Zhou, X. Zhuang, P. Areias, H. Nguyen-Xuan, Y. Bazilevs, T. Rabczuk

    Research output: Contribution to journalArticlepeer-review

    238 Citations (Scopus)

    Abstract

    We present an isogeometric thin shell formulation for multi-patches based on rational splines over hierarchical T-meshes (RHT-splines). Nitsche's method is employed to efficiently couple the patches. The RHT-splines have the advantages of allowing a computationally feasible local refinement, are free from linear dependence, possess high-order continuity and satisfy the partition of unity and non-negativity. In addition, the C1 continuity of the RHT-splines avoids the rotational degrees of freedom. The good performance of the present method is demonstrated by a number of numerical examples.

    Original languageEnglish
    Pages (from-to)1157-1178
    Number of pages22
    JournalComputer Methods in Applied Mechanics and Engineering
    Volume316
    DOIs
    Publication statusPublished - 2017 Apr 1

    Bibliographical note

    Publisher Copyright:
    © 2016 Elsevier B.V.

    Keywords

    • Isogeometric analysis
    • Large deformation
    • Multiple patches
    • NURBS
    • PHT-splines
    • Thin shell

    ASJC Scopus subject areas

    • Computational Mechanics
    • Mechanics of Materials
    • Mechanical Engineering
    • General Physics and Astronomy
    • Computer Science Applications

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