This paper proposes a novel strain hardening model for investigating gasket creep relaxation under compressive step-loading at room temperature. A closed form solution is developed for predicting the steady-state gasket pressure. Step-loading of the gasket may be directly achieved and controlled, or indirectly estimated through the bolt tightening and retightening torque. The effect of gasket material, time duration at each stress level, as well as the geometric parameters of the gasket are investigated. An experimental procedure and test setup are used to validate the proposed gasket model.
Viscoelastic Strain Hardening Model for Gasket Creep Relaxation
Rochester, MI 48309
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the Journal of Manufacturing Science and Engineering. Manuscript received May 6, 2011; final manuscript received July 23, 2012; published online May 21, 2013. Assoc. Editor: Hakim A. Bouzid.
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Abboud, A., and Nassar, S. A. (May 21, 2013). "Viscoelastic Strain Hardening Model for Gasket Creep Relaxation." ASME. J. Pressure Vessel Technol. June 2013; 135(3): 031201. https://doi.org/10.1115/1.4023501
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