Abstract
Purpose: A field data are applied to the joints of expansion for deriving of failure lifespan prediction model.BR Methods: We presumed that internal pressure and temperature condition inside the expansion as the factors that accelerate the durability at the time of vibration durability test, which was executed by accelerating the pressure and temperature condition.BR Results: Hypothesis was made that the lifespan data for each pressure condition comply with inverse power model and it was verified. In addition, in the case of temperature condition, hypothesis was made that lifespan data comply with the Arrhenius model and it was verified by inducing the coefficient value of each model formula. On the basis of the each of the induced lifespan prediction formula, Eyring model-based lifespan prediction model formula was induced by reflecting the temperature and pressure condition simultaneously, and it was verified.BR Conclusion: We proposed mixed lifespan prediction model for expansion joint based on field data using accelerated life test.
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