“…Attempts have been made to correlate the depth of attack with the fuel pin operating parameters, chiefly the temperature of the cladding inner surface, the initial O/M ratio of the fuel and the extent of burnup of the fuel [34]. These parameters have been incorporated to a greater or lesser extent into various models and correlations of cladding attack; however, even with their inclusion, these empirical models appear to be of limited applicability.…”