Stress Analysis and Sealing Performance Evaluation in Rectangular Box-Shape Bolted Flange Connection With Gasket Subjected to Internal Pressure

Author:

Sawa Toshiyuki1,Kurosawa Ryo2,Maezaki Wataru3

Affiliation:

1. Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima-shi, Hiroshima, 739-8527, Japan

2. Yokogawa Electric Corporation, 9-32, Nakacho 2-chrome, Musashino-shi, Tokyo 180-8750,Japan

3. University of Yamanashi, 4-4-37, Takeda, Kofu, Yamanashi, 400-8510 Japan

Abstract

The contact gasket stress distributions in a rectangular box-shape bolted flange connection with a compressed sheet gasket subjected to internal pressure were analyzed using the finite element method. Leakage tests were also conducted for an actual rectangular box-shape bolted flange connection with a compressed sheet gasket under internal pressure. Using the obtained contact gasket stress distributions and the results of the leakage tests, the new gasket constants were calculated. The difference in the new gasket constants between the values obtained from the present study and those from the Pressure Vessel Research Council (PVRC) procedure was substantial. In addition, a method to determine the bolt preload for a given tightness parameter was demonstrated and the difference in the determined bolt preload was shown between the present study and the PVRC procedure. The characteristics of the rectangular box-shape bolted flange connection were demonstrated by comparing those of circular bolted flange connections.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Safety, Risk, Reliability and Quality

Reference16 articles.

1. Mechanical Behavior of Bolted Joints Under Steady Heat Conduction;Kumano;ASME J. Pressure Vessel Technol.

2. On the Characteristics of Rectangular Box-Shape Bolted Flanged Connections With Gaskets Subjected to External Tensile Loads and Bending Moments;Morohoshi;ASME J. Pressure Vessel Technol.

3. A Stress Analysis of Pipe Flange Connections;Sawa;ASME J. Pressure Vessel Technol.

4. A Simple Method to Calculate the Force Ratio of Bolted Joints;Sawa;Bull. JSME

5. Axisymmetric, Nonidentical, Flat Face Flanges With Metal-to-Metal Contact Beyond the Bolt Circle;Water;ASME J. Eng. Ind.

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