FEM calculations and evaluation of sealing performance in comparison of raised face and flat face flange connections

Ryou Kurosawa, Toshiyuki Sawa, Yuya Omiya, Takashi Kobayashi, Kentaro Temma

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The bolted connections inserting gasket such as circular flange connections have been widely used in mechanical structures, which is nuclear and chemical industry, and so on. They are usually used under internal pressure. And they are required the high sealing performance. In the circular flange with non-asbestos compressed sheet gaskets, the two flange surfaces, raised-face and flat-face, are used. The raised-face flange on the sealing performance is examined by many researchers and reported. The flat-face is well known that flange rotation is smaller than that in raised-face flange under the internal pressure. However the sealing performance of the flat-face flange connection isn't examined. Thus, the sealing performance of the flat-face flange connection is not examined. In this paper, the contact gasket stresses of these connections under internal pressure are analyzed using the finite element method (FEM) of each flange surfaces, taking into account a hysteresis in the stress-displacement curve of the gasket. And then, using the contact gasket stress distributions obtained from FE analysis and the relationship between gasket stress and leak rate obtained from a gasket sealing test (JIS B2490), method for estimating an amount of leakage is examined. The leakage tests were also conducted to measure an amount of gas leakage using an actual circular flange connection with a gasket. The estimated results are in a fairly good agreement with the experimental results.

Original languageEnglish
Title of host publicationASME 2013 Pressure Vessels and Piping Conference, PVP 2013
DOIs
Publication statusPublished - Dec 1 2013
Externally publishedYes
EventASME 2013 Pressure Vessels and Piping Conference, PVP 2013 - Paris, France
Duration: Jul 14 2013Jul 18 2013

Publication series

NameAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume2
ISSN (Print)0277-027X

Other

OtherASME 2013 Pressure Vessels and Piping Conference, PVP 2013
CountryFrance
CityParis
Period7/14/137/18/13

ASJC Scopus subject areas

  • Mechanical Engineering

Fingerprint Dive into the research topics of 'FEM calculations and evaluation of sealing performance in comparison of raised face and flat face flange connections'. Together they form a unique fingerprint.

  • Cite this

    Kurosawa, R., Sawa, T., Omiya, Y., Kobayashi, T., & Temma, K. (2013). FEM calculations and evaluation of sealing performance in comparison of raised face and flat face flange connections. In ASME 2013 Pressure Vessels and Piping Conference, PVP 2013 (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 2). https://doi.org/10.1115/PVP2013-97106