1. Division of Solid Mechanics, Emmy Noether research group MISMO “Mechanical Instabilities in Self-similar Molecular Structures of Higher Order”; Technische Universität Darmstadt; Franziska-Braun-Str. 7, 64289 Darmstadt Germany
2. Institute of Applied Materials-Computational Materials Science (IAM-CMS); Karlsruhe Institute of Technology; Engelbert-Arnold-Str. 4, 76131 Karlsruhe Germany
3. Institute of Structural Analysis; University of Kassel; Mönchebergstr. 7, 34125 Kassel