Achieving Uniform Clamp Load in Gasketed Bolted Joints Using a Nonlinear Finite Element Model
- 5 May 2010
- journal article
- Published by ASME International in Journal of Pressure Vessel Technology
- Vol. 132 (3), 031205
- https://doi.org/10.1115/1.4001040
Abstract
A three-dimensional nonlinear finite element model is developed for achieving a uniform clamp load in gasketed bolted joints. The model is used for both multiple and single pass tightening patterns. Geometric nonlinearity of the gasket is taken into account and plastic model parameters are experimentally determined. The effect of the tightening pattern, gasket loading and unloading history, and the preload level is investigated. The validity of the FEA methodology is experimentally verified. This study helps improve the reliability of gasketed bolted joints by minimizing the bolt-to-bolt clamp load variation caused by elastic interaction among the various bolts in the joint during initial joint-bolt-up.Keywords
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