It is well known that a large amount of scatter in bolt preloads is observed when bolting up a pipe flange connection, especially in the case of using a spiral wound gasket. In this study, a numerical approach is proposed, which can simulate the bolt-up process of a pipe flange connection with a spiral wound gasket inserted. The numerical approach is designed so as to predict the scatter in bolt preloads and achieve uniform bolt preloads at the completion of pipe flange assembly. To attain the foregoing purposes, the stress-strain relationship of a spiral wound gasket, which shows highly nonlinear behavior, is identified with a sixth-degree polynomial during loading and with an exponential equation during unloading and reloading. Numerical analyses are conducted by three-dimensional FEM, in which a gasket is modeled as groups of nonlinear one-dimensional elements.
Finite Element Simulation of Bolt-Up Process of Pipe Flange Connections With Spiral Wound Gasket
Contributed by the Pressure Vessels and Piping Division for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received by the PVP Division September 11, 2001; revision received April 4, 2003. Associate Editor: D. R. Metzger.
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Fukuoka, T., and Takaki, T. (November 4, 2003). "Finite Element Simulation of Bolt-Up Process of Pipe Flange Connections With Spiral Wound Gasket ." ASME. J. Pressure Vessel Technol. November 2003; 125(4): 371–378. https://doi.org/10.1115/1.1613304
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