GBT model for the buckling analysis of conical shells with stress concentrations

Adina-Ana Muresan, Rodrigo de Moura Gonçalves, Mihai Nedelcu

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The paper presents a Finite Element formulation based on Generalized Beam Theory (GBT) for the analysis of the linear buckling behaviour of conical shells under various loading and boundary conditions. The GBT approach provides a general solution for the 1st and 2nd order analyses using bar elements capable of describing the global and local deformations. Because of the cross-section
variation specific to conical shells, the mechanical and geometric properties are no longer constant along the bar axis as in the case of cylinders and prismatic thin-walled members. This proposed GBT finite element formulation is validated by comparison with results obtained by means of shell finite element analyses. The illustrative examples cover axially compressed members displaying all classical bar boundary conditions. Special attention is dedicated to the effect of pre-buckling stress concentrations
Original languageEnglish
Title of host publicationProceedings of the 8th International Conference on Thin-Walled Structures (ICTWS 2018)
Place of PublicationLisbon
PublisherUniversidade de Lisboa
Number of pages17
Publication statusPublished - 24 Jul 2018
Event8th International Conference on THIN-WALLED STRUCTURES (ICTWS 2018) - Lisbon, Portugal
Duration: 24 Jul 201827 Jul 2018
Conference number: 8th


Conference8th International Conference on THIN-WALLED STRUCTURES (ICTWS 2018)
Abbreviated titleICTWS 2018


  • Generalized Beam Theory
  • Conical shells
  • Finite element method
  • Linear buckling analysis

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