Dresden 2026 – wissenschaftliches Programm
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MM: Fachverband Metall- und Materialphysik
MM 32: Topical Session: Advanced Nanomechanics – Accelerating Materials Physics from the Bottom I
MM 32.5: Vortrag
Donnerstag, 12. März 2026, 12:15–12:30, SCH/A251
Mechanical Behaviour of Nafion Membranes — •Mateja Jovanović1,2,3, Matthias Baldofski2, Nicolas Bernhard2, Marcin Rybicki2,4, Miljan Dašić3, and Igor Stanković3,5 — 1Institute of Technical Sciences of the SASA, K. Mihailova 35/IV, 11000 Belgrade, Serbia — 2Freudenberg Technology Innovation SE&Co. KG, Hoehnerweg 2-4, 69469 Weinheim, Germany — 3Institute of Physics, University of Belgrade, Pregrevica 118, 11080 Zemun, Serbia — 4Freudenberg e-Power Systems GmbH, Bayerwaldstrasse 3, 81737 München, Germany — 5Departamento de Ingeneria Mecanica, Universidad Tecnica Federico Santa Maria, Av. Espana 1680, Valparaiso, Chile
Proton Exchange Membrane Fuel Cells (PEMFCs) utilise polymer membranes like Nafion, valued for their proton conductivity and mechanical integrity. In this work, we examine the stress-strain response of Nafion membranes, focusing on how hydration, crystallinity, and temperature modulate mechanical behavior, using molecular dynamics simulations. Here, we demonstrate that membrane hydration level and structural ordering fundamentally influence mechanical properties under applied stress. Water distribution and polymer chain dynamics are closely connected to the stress-strain response, suggesting that structural organization at the nanoscale is crucial in governing overall mechanical performance across different conditions. By integrating clustering algorithms, structural descriptors, and stress-strain analyses, this study provides a comprehensive view of how membrane architecture and environmental factors govern mechanical performance.
Keywords: Nafion; Proton Exchange Membrane; Molecular Dynamics; Mechanical Properties; Stress-Strain Response