Material modeling for numerical simulation of elastomer O-rings with experimental verification at low temperatures

Elastomer O-Ring seal; High-pressure hydrogen storage; Limited recovery; Low temperature; Primary leakage; Viscoelastic; Elastomer O-ring seal; Experimental verification; High pressure hydrogen storage; Lows-temperatures; Material modeling; O-ring seal; O-Rings; Viscoelastics; Renewable Energy, Sustainability and the Environment; Fuel Technology; Condensed Matter Physics; Energy Engineering and Power Technology; Elastomer O -Ring seal

Abstract :

[en] Elastomer O-ring seals are used in many technical applications and their requirements are becoming increasingly challenging for high-pressure applications like hydrogen storage systems. We analyze the performance of such seals at low temperatures and highlight the essential effects of primary leakage. Linear viscoelastic material modeling is described and defined with the help of Dynamic Mechanical Thermal Analysis (DMTA), Time-Temperature Superposition Principle (TTSP), and the shift function of Williams-Landel-Ferry (WLF) by assuming thermo-rheological simple material behavior. Numerical calculations and experimental validation are done for strain-rate dependent uniaxial tensile tests, Temperature Retraction (TR), Compression Set (CS), and specific leakage tests with O-rings. Thanks to Finite Element Analysis (FEA) it is possible to identify the most significant influences on the sealing tightness. Thermal shrinkage and the increasingly limited recovery of elastomer O-rings are mainly responsible for primary leakage at low temperatures and can be enforced by time-temperature dependent stress relaxation and manufacturing tolerances.

Disciplines :

Materials science & engineering

Author, co-author :

REPPLINGER, Christian ; University of Luxembourg > Faculty of Science, Technology and Medicine > Department of Engineering > Team Stefan MAAS

Sellen, S.; ROTAREX S.A., Lintgen, Luxembourg

KEDZIORA, Slawomir ; University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)

Zürbes, A.; University of Applied Sciences BINGEN, Bingen am Rhein, Germany

MAAS, Stefan ; University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)

External co-authors :

yes

Language :

English

Title :

Material modeling for numerical simulation of elastomer O-rings with experimental verification at low temperatures

Publication date :

28 August 2024

Journal title :

International Journal of Hydrogen Energy

ISSN :

0360-3199

eISSN :

1879-3487

Publisher :

Elsevier Ltd

Volume :

Pages :

1046 - 1061

Peer reviewed :

Peer Reviewed verified by ORBi

Development Goals :

7. Affordable and clean energy

Additional URL :

https://api.elsevier.com/content/article/PII:S0360319924026661?httpAccept=text/xml

Available on ORBilu :

since 09 September 2024

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