At the international conference (ECCOMAS Thematic Conference) "Modern Finite Element Technologies" in Aachen (20.–22.08.2025), Dr.-Ing. Jonas Boungard successfully presented the current research results of the Institute of Structural Analysis in the field of incorporating nonlinear constraints using master-slave elimination in the finite element method. During the conference there was a fruitful exchange with other scientists. We are looking forward to the next MFET conference in 2027.