A geometrically exact spatial beam finite element based on the fixed-pole approach

Maja Gacesa (1) , Gordan Jelenic (1)

1 Faculty of Civil Engineering [Rijeka]

A spatial geometrically exact finite element based on the fixed-pole approach of an arbitrary order is presented. In contrast to the original formulation by Bottasso and Borri, this formulation uses standard kinematic unknowns and is therefore combinable with standard finite elements. Preliminary results show that when updating displacements and rotations at integration points, this formulation may yield more accurate results.

Mots clés: 3D beams; non; linear analysis; configuration; dependent interpolation; fixed; pole approach

Domaines: Analyse numérique [math.NA]; Mécanique [physics]; Sciences de l'ingénieur [physics]

Maja Gacesa, Gordan Jelenic. A geometrically exact spatial beam finite element based on the fixed-pole approach. 2nd ECCOMAS Young Investigators Conference (YIC 2013), Sep 2013, Bordeaux, France. ⟨hal-00855912⟩