Development of an anisotropic co-rotational beam model including variable cross-section

Hyeongmin Moon, Haeseong Cho, Stephanos Theodossiades, Taeseong Kim*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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The aim of this article is to expand the general approach of the flexible beam model to consider tapered geometry and anisotropic properties by updating the cross-sectional stiffness matrix. The advantage of this approach is that continuously variable cross-section, as well as irregular axes on the cross-sections, are considered simultaneously by the co-rotational method. Anisotropic and isotropic cantilevered beam cases are simulated. A static force or moment is applied as the external load. NREL 5 MW wind turbine blade is analyzed as a practical example. The results are compared against the existing literature and ABAQUS model, and they show excellent agreement.
Original languageEnglish
JournalMechanics of Advanced Materials and Structures
Issue number3
Pages (from-to)423-436
Number of pages14
Publication statusPublished - 2023


  • Geometric nonlinearity
  • Co-rotational method
  • Anisotropic beam
  • Sectional stiffness
  • Taper effect
  • Warping effect


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