Dresden 2020 – scientific programme
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 24: Poster Session I
CPP 24.40: Poster
Monday, March 16, 2020, 17:30–19:30, P3
Development of a process to characterize an elastomer-metal contact with the aim of leakage prediction — •Felix Senf1, Marius Pätzold1, Robin Fonk2, Sean Schneeweiß2 und Othmar Marti1 — 1Institut für Experimentelle Physik, Ulm — 2Ulmer Zentrum für wissenschaftliches Rechnen, Ulm
The following investigation describes the connection between surface structures, elastomers and tightness of critical leakage systems. In technical applications the sealing of hardware components is described with leakage rates based on different boundary conditions of the system. In general, physical rules state that an absolutely sealed system is not possible. Different parameters like materials, surface structures, roughness parameters, closing forces and not least the design of the sealing system influence the function of the sealing joint. The research program investigates the alignment between elastomers and metal surface structures and the resulting open volumes. The theory of contact problems, FEA simulation tasks and compression experiments help us to describe this alignment. An experimental set-up for leakage measurements and the combination with CFD simulations are the main tool to understand the leakage nature more in detail. Out of this toolbox we create a new process to describe leakage cases in a time efficient manner. Filter methods like morphological filters and Voronoi diagrams help us to work out the process.