1. Institute of Applied Mechanics (CE); University of Stuttgart; Pfaffenwaldring 7 70569 Stuttgart Germany
2. Stuttgart Research Centre for Simulation Technology (SRC SimTech); University of Stuttgart; Pfaffenwaldring 5a 70569 Stuttgart Germany
3. Department of Aerospace Engineering Sciences and Center for Aerospace Structures; University of Colorado; Campus Box 429 CO 80309 Boulder USA
4. Institute of General Mechanics; RWTH Aachen University; Templergraben 64 52062 Aachen Germany