Abstract
Metal gaskets have been used in bolted flanged connections under higher pressure and higher temperature conditions. However, it is difficult to estimate the sealing performance of the metal contact interfaces in the connections. Thus, it is necessary to study on the sealing characteristics of the metal to metal contact gasket in the connections under higher internal pressure and higher temperature. In this study, firstly, the sealing behavior test taking into account load history is carried out in detail using metal flat gaskets according to JIS B2490. Secondly, to examine the effect of the gasket contact area and surface roughness of metal gasket on the sealing behavior of metal-metal contact, the sealing behavior test is carried out using metal flat gaskets which has several types of gasket width and surface roughness. Thirdly, the amount of leakage is measured for bolted flanged connections with metal flat gaskets. The relationship between the gasket contact stress and the leak rate is obtained. Furthermore, the contact gasket stress distributions in the connection are analyzed using FEM stress analysis. Using the obtained gasket stress distribution, the sealing performance is estimated taking into account the gasket contact area and surface roughness of the metal flat gasket. The estimated result is compared with the measured results. In the results, the effect of the yield stress and the plastic deformation of the gasket surface are found to be important on the sealing mechanism.
| Original language | English |
|---|---|
| Title of host publication | American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP |
| Volume | 2 |
| DOIs | |
| Publication status | Published - 2013 |
| Externally published | Yes |
| Event | ASME 2013 Pressure Vessels and Piping Conference, PVP 2013 - Paris, France Duration: Jul 14 2013 → Jul 18 2013 |
Other
| Other | ASME 2013 Pressure Vessels and Piping Conference, PVP 2013 |
|---|---|
| Country | France |
| City | Paris |
| Period | 7/14/13 → 7/18/13 |
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ASJC Scopus subject areas
- Mechanical Engineering
Cite this
Fem stress analysis and the sealing performance evaluation of bolted flanged connections with metal flat gaskets. / Kondo, Koji; Tsubaki, Shota; Sawa, Toshiyuki; Omiya, Yuya; Sato, Koji.
American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP. Vol. 2 2013.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Fem stress analysis and the sealing performance evaluation of bolted flanged connections with metal flat gaskets
AU - Kondo, Koji
AU - Tsubaki, Shota
AU - Sawa, Toshiyuki
AU - Omiya, Yuya
AU - Sato, Koji
PY - 2013
Y1 - 2013
N2 - Metal gaskets have been used in bolted flanged connections under higher pressure and higher temperature conditions. However, it is difficult to estimate the sealing performance of the metal contact interfaces in the connections. Thus, it is necessary to study on the sealing characteristics of the metal to metal contact gasket in the connections under higher internal pressure and higher temperature. In this study, firstly, the sealing behavior test taking into account load history is carried out in detail using metal flat gaskets according to JIS B2490. Secondly, to examine the effect of the gasket contact area and surface roughness of metal gasket on the sealing behavior of metal-metal contact, the sealing behavior test is carried out using metal flat gaskets which has several types of gasket width and surface roughness. Thirdly, the amount of leakage is measured for bolted flanged connections with metal flat gaskets. The relationship between the gasket contact stress and the leak rate is obtained. Furthermore, the contact gasket stress distributions in the connection are analyzed using FEM stress analysis. Using the obtained gasket stress distribution, the sealing performance is estimated taking into account the gasket contact area and surface roughness of the metal flat gasket. The estimated result is compared with the measured results. In the results, the effect of the yield stress and the plastic deformation of the gasket surface are found to be important on the sealing mechanism.
AB - Metal gaskets have been used in bolted flanged connections under higher pressure and higher temperature conditions. However, it is difficult to estimate the sealing performance of the metal contact interfaces in the connections. Thus, it is necessary to study on the sealing characteristics of the metal to metal contact gasket in the connections under higher internal pressure and higher temperature. In this study, firstly, the sealing behavior test taking into account load history is carried out in detail using metal flat gaskets according to JIS B2490. Secondly, to examine the effect of the gasket contact area and surface roughness of metal gasket on the sealing behavior of metal-metal contact, the sealing behavior test is carried out using metal flat gaskets which has several types of gasket width and surface roughness. Thirdly, the amount of leakage is measured for bolted flanged connections with metal flat gaskets. The relationship between the gasket contact stress and the leak rate is obtained. Furthermore, the contact gasket stress distributions in the connection are analyzed using FEM stress analysis. Using the obtained gasket stress distribution, the sealing performance is estimated taking into account the gasket contact area and surface roughness of the metal flat gasket. The estimated result is compared with the measured results. In the results, the effect of the yield stress and the plastic deformation of the gasket surface are found to be important on the sealing mechanism.
UR - http://www.scopus.com/inward/record.url?scp=84894683581&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84894683581&partnerID=8YFLogxK
U2 - 10.1115/PVP2013-97828
DO - 10.1115/PVP2013-97828
M3 - Conference contribution
AN - SCOPUS:84894683581
SN - 9780791855669
VL - 2
BT - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
ER -