The complexities of the structure of dispersion fuels and of irradiation conditions makes interpretation of irradiation experiments difficult. A method is suggested for consideration of irradiation conditions independently of material variables so long as these variables are held constant. Estimates are made of the relative severity of experiments made on identical specimens under different experimental conditions. A numerical application of the analysis was made to specimens of 18-8 stainless steel with 25 and 30 w/o UO2. Approximate failure limits for both specimen compositions are obtained although both sets of data are very limited. Further experimentation is needed to more fully establish the limits of the application of the proposed model.