Journal Article

FZJ-2025-05436

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Leakage at interfaces: A comprehensive study based on Persson contact mechanics theory

Xu, R.FZJ* ; Gil, L. ; Singer, J. ; Gontard, L. ; Leverd, W. ; Persson, B. (Corresponding author)FZJ*

2026
Elsevier Science Amsterdam [u.a.]

This record in other databases:  

Please use a persistent id in citations: doi:10.1016/j.triboint.2025.111352  doi:10.34734/FZJ-2025-05436

Abstract: We present a comprehensive study of gas leakage at interfaces based on Persson contact mechanics theory. A prototype syringe system consisting of a rubber stopper and a glass barrel is selected, where surface roughness is characterized using measurements from stylus profilometry and atomic force microscopy, and contact pressure distributions are obtained from Finite Element Method (FEM) calculations. Leakage prediction is performed using Multiscale Contact Mechanics(MCM) software. The predicted results show good agreement with experimental measurements under controlled dry conditions. Sensitivity analyses indicate that small variations in elastic modulus and contact pressure can significantly influence leakage, particularly near the percolation threshold. This work provides a generalized and validated framework for leakage prediction and offers practical guidance for the design of sealing systems in pharmaceutical and engineering applications.

---

Contributing Institute(s):

1. Quanten-Theorie der Materialien (PGI-1)

Research Program(s):

1. 5211 - Topological Matter (POF4-521) (POF4-521)

Appears in the scientific report 2026

---

Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

---