Abstract
Purpose: The objective of this study was to predict the lifetime of a rubber O-ring in contact with fuel in cases involving a heterogeneous degradation pattern.BRMethods: We introduced a change-point regression model to detect the point at which the degradation rate changed. The data after the change-point were processed using the exponential degradation model to predict the B_p lifetime.BRResults: The prediction results were used to evaluated the superiority of different fuel types, and the results were noted to be in agreement with those presented in literature. BRConclusion: The rubber O-ring in contact with JET A-1 fuel corresponded to a more stable compression set degradation pattern and exhibited a larger lifetime compared to those of BIOJET fuel.
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