Effect of scatter in axial bolt force on the sealing performance of 20″ inch pipe flange connections with CSG under internal pressure

Yuya Omiya, Koji Itano

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

1 Citation (Scopus)

Abstract

Since a scatter in axial bolt force exists in assembling the pipe flange connections, it is important to evaluate the effect of scatter in axial bolt force on the sealing performance of pipe flange connection. The FE and experimental analyses were done to evaluate the effect of scatter in axial bolt force on the sealing performance of pipe flange connection with 20 "nominal diameter. The results revealed that the large diameter pipe flange connection was sensitive to the scatter in axial bolt force. Besides, the large diameter pipe flange affected more by flange rotation when internally pressurized. As a result, a larger diameter pipe flange connection with scattered bolt preload showed poor sealing performance. The experimentally obtained scatter in axial bolt force as assembled was taken into account in FE analyses and the effect of the scatters on the contact gasket stress distributions was shown numerically. FE results show that the sealing performance is reduced due to the distributed gasket stress and bolt force scatter in the axial direction.

Original languageEnglish
Title of host publicationComputer Technology and Bolted Joints
PublisherAmerican Society of Mechanical Engineers (ASME)
Volume2
ISBN (Print)9780791856956
DOIs
Publication statusPublished - 2015
EventASME 2015 Pressure Vessels and Piping Conference, PVP 2015 - Boston, United States
Duration: Jul 19 2015Jul 23 2015

Other

OtherASME 2015 Pressure Vessels and Piping Conference, PVP 2015
CountryUnited States
CityBoston
Period7/19/157/23/15

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ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Omiya, Y., & Itano, K. (2015). Effect of scatter in axial bolt force on the sealing performance of 20″ inch pipe flange connections with CSG under internal pressure. In Computer Technology and Bolted Joints (Vol. 2). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/PVP2015-45715