Finite Element Simulation of Bolt-Up Process of Pipe Flange Connections With Spiral Wound Gasket
Author:
Fukuoka Toshimichi1, Takaki Tomohiro1
Affiliation:
1. Department of Ocean Electro-Mechanical Engineering, Kobe University of Mercantile Marine, 5-1-1, Fukaeminami, Higashinada, Kobe, Japan
Abstract
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.
Publisher
ASME International
Subject
Mechanical Engineering,Mechanics of Materials,Safety, Risk, Reliability and Quality
Reference16 articles.
1. Goddard, D. L., and Bibel, G. D., 1994, “Bolt Preload Variation During Torquing of a Bolted Flange Connection,” ASME PVP-Vol. 274, pp. 25–32. 2. Bouzid, A., and Derenne, M., 1999, “A Simple Method for Analyzing the Contact Stress in Bolted Flange Joints With Non-Linear Gaskets,” ASME PVP-Vol. 382, pp. 103–111. 3. Hwang, D. Y., and Stallings, N. M., 1994, “Finite Element Analysis of Bolted Flange Connections,” Comput. Struct., 51, pp. 521–533. 4. Jofriet, J. C., Sze, Y., and Thompson, J. C., 1981, “Further Studies of the Interface Boundary Connections for Bolted Flanged Connections,” ASME J. Pressure Vessel Technol., 103, pp. 204–245. 5. Rao, D. G., Ramamurti, V., and Narayama, S., 1985, “Effect of Bolt Load on the Deformation of a Taper Hub Flange,” Comput. Struct., 21(3), pp. 405–412.
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