Geometrically nonlinear multi-patch isogeometric analysis of spatial Euler–Bernoulli beam structures

This study presents a novel isogeometric Euler–Bernoulli beam formulation for null geometrically nonlinear analysis null of multi-patch beam structures. The proposed formulation is derived from the three-dimensional continuum theory where the beam axis and the director vectors of cross-sections are used to characterize beam configurations. The translational displacements of the beam axis and the axial cross-sectional rotation along the beam axis...