The sealing performance of liquid sealant in flexible flanged bolted joints
- Loctite Japan Corp., Yokohama (Japan)
- Yamanashi Univ., Kofu, Yamanashi (Japan)
Recently, bolted joints with flexible flanges have been used from a lightweight viewpoint. However, it is difficult to improve the sealing performance of the joints due to the reduction of the interface pressure. In this paper, a liquid sealant is applied to a flexible flanged bolted joint in order to improve the sealing performance. In the experiments, a leakage is observed when flanged bolted joints sealed by gasket and liquid sealants with flange thickness of 1 and 6 mm are subjected to internal pressure. In addition, the effects of the adjacent bolt distance, the flange thickness and the bolt preload on the sealing performance are examined. Moreover, the interface stress distribution of flexible bolted flanged joints is analyzed using two-dimensional theory of elasticity and finite-element method to compare the experimental and numerical results. It is found that the sealing performance of bolted joints with liquid sealant is improved in comparison to that with the conventional gaskets.
- OSTI ID:
- 404150
- Report Number(s):
- CONF-960706--; ISBN 0-7918-1773-3
- Country of Publication:
- United States
- Language:
- English
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