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Published in: Strength of Materials 1/2022

21-05-2022

Stress Analysis of Self-Tightness Metal Sealing Against Ultrahigh Pressure Medium

Authors: M. J. Zhao, P. C. Zhu, Z. Li, Z. Liu, C. Kang

Published in: Strength of Materials | Issue 1/2022

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Abstract

Stress is one of the most important factors in metal-to-metal sealing. In this paper, two methods (theoretical and empirical) were adopted to calculate the normal stress of the brass sealing surfaces against different ultrahigh pressure liquid. The theoretical formula was derived in terms of force balance, and the empirical formula was obtained by polynomial curve fitting, which the fitted data were from simulated results; besides, the results calculated by using the empirical formula agree well with the results by theoretical formula. Meanwhile, the equivalent stresses of the brass seal, normal stress and contact stress on the brass seal surfaces were simulated by finite element method, and the simulated results indicated these stresses are increased with the increase of liquid pressure, and the maximum stresses always appear on the tip of the brass seal.
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Metadata
Title
Stress Analysis of Self-Tightness Metal Sealing Against Ultrahigh Pressure Medium
Authors
M. J. Zhao
P. C. Zhu
Z. Li
Z. Liu
C. Kang
Publication date
21-05-2022
Publisher
Springer US
Published in
Strength of Materials / Issue 1/2022
Print ISSN: 0039-2316
Electronic ISSN: 1573-9325
DOI
https://doi.org/10.1007/s11223-022-00390-7

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