Alexander Popp

Modified augmented Lagrangian preconditioning for mixed-dimensional beam-solid coupling

This paper presents modified augmented Lagrangian block preconditioners for the mixed-dimensional coupling of three-dimensional solid bodies with embedded one-dimensional torsion-free Kirchhoff-Love beams using Lagrange multipliers for constraint enforcement. The finite element d...

A variationally consistent beam-to-beam point coupling formulation for geometrically exact beam theories

Abstract Slender beam-like structures frequently occur in engineering applications and often interact at discrete locations through joints or connectors. Accurate modeling of such interactions is particularly challenging when different numerical formulations are involved in terms...