Regensburg 2016 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 14: Poster: Polymer Networks and Elastomers, Hydrogels, Soft Robotics

CPP 14.1: Poster

Monday, March 7, 2016, 18:15–21:00, Poster B2

Theoretical and experimental investigations of sealing systems — •Felix Senf and Othmar Marti — Institut für Experimentelle Physik, Ulm, Deutschland

In technical applications the sealing of hardware components is described with leakage rates based on different boundaries of the system. In general the physical rules state an absolutely sealed system is not possible. Different parameters like materials, surface structures, roughness parameters, closing forces and finally the design of the sealing system influence the function of the sealing joint. Engineer standards to describe the surface influence of sealing is only with roughness parameters of the hardware surface. They do not consider that roughness parameters are only statistical parameters with limited information to the real sealing behavior of the joint. Out of this the real systems can show high tolerances in sealing limits.

The research program is about understanding the alignment between elastomers and metal surface structures and the resulting open volumes. The theory of contact problems, FEA simulation tasks and compression experiments will help us to describe this alignment. An experimental set up for leakage measurements and the combination with CFD simulation are the main part to understand the leakage nature more detailed. Out of this toolbox we want to create a new practical understanding how sealing works.