Bolted connections inserting gaskets such as box-shape flange connections have been widely used in mechanical structures, nuclear and chemical industry, and so on. They are usually used under internal pressure. In designing the box-shape flange connections with gaskets under internal pressure, it is important to clarify the gasket stress distribution for evaluating the sealing performance of these connections. However, no research in which the sealing performance of these connections is examined under internal pressure has been carried out. Thus, the design for box-shape connection such as thickness of flange cover, number of bolts, gasket width, and so on is not clarified. In this paper, the contact gasket stresses of these connections under internal pressure are analyzed using the finite element method (FEM), 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), a method for estimating an amount of leakage is examined. Leakage tests were also conducted to measure an amount of gas leakage using an actual box-shape flange connection with a gasket. The estimated results are in reasonable agreement with the experimental results. In addition, the effect of gasket width, flange cover thickness, and flange cover material is examined on the sealing performances of box-shape flange connections under internal pressure. The effects of the above factors are discussed on the sealing performance in designing box-shape flange connections.
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October 2017
Research-Article
Finite Element Method Stress Analysis and Evaluation of the Sealing Performance in Box-Shape Flange Gasketed Connections Subjected to Internal Pressure Available to Purchase
Toshiyuki Sawa,
Toshiyuki Sawa
Fellow ASME
Professor Emeritus
Graduate School of Engineering,
University of Hiroshima,
1-4-1, Kagamiyama, Higashihiroshima,
Hiroshima 739-8527, Japan
e-mail: [email protected]
Professor Emeritus
Graduate School of Engineering,
University of Hiroshima,
1-4-1, Kagamiyama, Higashihiroshima,
Hiroshima 739-8527, Japan
e-mail: [email protected]
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Kentaro Tenma,
Kentaro Tenma
Graduate School of Engineering,
University of Hiroshima,
1-4-1, Kagamiyama, Higashihiroshima,
Hiroshima 739-8527, Japan
e-mail: [email protected]
University of Hiroshima,
1-4-1, Kagamiyama, Higashihiroshima,
Hiroshima 739-8527, Japan
e-mail: [email protected]
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Takashi Kobayashi,
Takashi Kobayashi
National Institute of Technology,
Numazu College,
3600 Ooka,
Numazu, Shizuoka 410-8501, Japan
e-mail: [email protected]
Numazu College,
3600 Ooka,
Numazu, Shizuoka 410-8501, Japan
e-mail: [email protected]
Search for other works by this author on:
Ryou Kurosawa
Ryou Kurosawa
Search for other works by this author on:
Toshiyuki Sawa
Fellow ASME
Professor Emeritus
Graduate School of Engineering,
University of Hiroshima,
1-4-1, Kagamiyama, Higashihiroshima,
Hiroshima 739-8527, Japan
e-mail: [email protected]
Professor Emeritus
Graduate School of Engineering,
University of Hiroshima,
1-4-1, Kagamiyama, Higashihiroshima,
Hiroshima 739-8527, Japan
e-mail: [email protected]
Kentaro Tenma
Graduate School of Engineering,
University of Hiroshima,
1-4-1, Kagamiyama, Higashihiroshima,
Hiroshima 739-8527, Japan
e-mail: [email protected]
University of Hiroshima,
1-4-1, Kagamiyama, Higashihiroshima,
Hiroshima 739-8527, Japan
e-mail: [email protected]
Takashi Kobayashi
National Institute of Technology,
Numazu College,
3600 Ooka,
Numazu, Shizuoka 410-8501, Japan
e-mail: [email protected]
Numazu College,
3600 Ooka,
Numazu, Shizuoka 410-8501, Japan
e-mail: [email protected]
Ryou Kurosawa
1Present address: 2-3-2-702 Minamisuna, Koto-City, Tokyo 136-0076, Japan.
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received January 5, 2011; final manuscript received June 24, 2017; published online August 1, 2017. Assoc. Editor: Hakim A. Bouzid.
J. Pressure Vessel Technol. Oct 2017, 139(5): 051202 (7 pages)
Published Online: August 1, 2017
Article history
Received:
January 5, 2011
Revised:
June 24, 2017
Citation
Sawa, T., Tenma, K., Kobayashi, T., and Kurosawa, R. (August 1, 2017). "Finite Element Method Stress Analysis and Evaluation of the Sealing Performance in Box-Shape Flange Gasketed Connections Subjected to Internal Pressure." ASME. J. Pressure Vessel Technol. October 2017; 139(5): 051202. https://doi.org/10.1115/1.4037192
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