summaery2019: Projects

MODELLING OF CURVED PIPES USING GENERALIZED BEAM THEORY

Numerical example using GBT

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Project information

submitted by
Daniela Torres

Co-Authors
Abinet K. Habtemariam, Marcelo J. Bianco, Fabiola Tartaglione, Daniela Torres

Mentors
Volkmar Zabel, Carsten Könke

Faculty:
Civil Engineering

Degree programme:
– Other –

Type of project presentation
Research project

Semester
– Other –


Project description

The research group studies the development and application of the Generalized Beam Theory (GBT) for stress and deformation analysis of straight and curved thin-walled circular pipes. In comparison to the analysis of straight pipes, the analysis of pipe bends is a complex problem due to the strong coupling effect of the longitudinal bending and the cross-sectional ovalization. GBT is a beam theory especially formulated for thin-walled sections with the capacity of determining the cross-sectional deformation through the combination of a set of predetermined cross-sectional deformation modes. This nature of GBT makes it suitable to precisely identify and determine possible couplings between the considered GBT deformation modes and to analyze the behavior of pipe bends with high accuracy and computational efficiency. The formulation presented in this study is based on Kirchhoff's thin-plate assumption with consideration of additional shear deformation modes to overcome null transverse extension and shear membrane strain assumptions of classical GBT formulations. Here, to illustrate the application and capabilities of the developed GBT formulation, a set of numerical examples with in-plane, out-of-plane and pressure loading conditions involving a combination and coupling of bending, warping, torsional, axisymmetric and local deformations are presented.

Videos

Example using Generalized Beam Theory

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Numerical example using GBT

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Exhibition Location / Event Location

  • – ONLINE –