A mathematical expression for predicting the damage rate for chipping process of a mechanically operated cocoyam chipper is presented. The model for the damage rate was developed by dimensional analysis, using the concept of Buckingham’s Pi Theorem. The model was verified and validated by fitting it into experimental data from the developed mechanical cocoyam chipper. The R2 value of goodness of fit and its significance level for the compared predicted and measured chip damage data obtained were evaluated. Also, the statistical significance test at 5% level was carried out by computing the student’s t- test and then determining the significance level in a table t – values. The results obtained revealed that the fitted model correlated well with the experimental data with R-square value of 0.98. Also, the difference between the means of the predicted and the measured damage rate was not statistically significant at 5% level since the calculated t - value of 0.103 obtained is less than the table t – value of 2.306.
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