An empirical model for the longitudinal ridging of thin wall CANDU fuel elements

Résumé du livre

This report describes the results of 84 collapse specimens tested at wcl during the last year to identify the longitudinal ridging behaviour of fuel cladding. an empirical model was obtained that defines the critical ridging pressure below which a fuel element is not expected to exhibit severe longitudinal ridging. this model is expected to provide good predictions for critical ridging pressure if clad wall thickness is between 0.012 inches and 0.020 inches, clad yield stress at collapse temperature is between 18000 psi and 26000 psi, and room temperature diametral clearance is between 0.000 inches and 0.007 inches.