DRVNA INDUSTRIJA, cilt.74, sa.2, ss.153-166, 2023 (SCI-Expanded)
The
purpose of this study was to predict the adhesion strength of the varnish,
which is applied as a protective coating/finish on the surface of wooden
material using soft computing models. In this study, the soft computing
approaches were applied to oak (Quercus Petrea L.), chestnut (Castanea sativa
M.), and scotch pine (Pinus sylvestris L.) with water-based, polyurethane, and
acrylic varnishes. The adhesion strength of the varnish was determined in
accordance with the Turkish Standard Institute-24624 and ASTM D4541. The
outcome of the experiment was used to develop artificial neural network (ANN)
and fuzzy logic (FL) prediction models. The total number of 360 data points was
split as 80 % of training and 20 % of test for the model development. During
the application of the ANN, 6 features were used as an input, while the
adhesion strength was used as an output of the model. The coefficient of
determination values (R2)
for training and testing in the ANN models were 0.9939 and 0.9580,
respectively. In the case of the ANFIS model, R2 values for training and testing
were 0.9917 and 0.9929, respectively. Considering the MAPE, RMSE, and R2 values obtained from the results
of both training and test values, it can be concluded that the ANFIS model
showed a more successful performance in estimating varnish adhesion strength.
Therefore, ANN and ANFIS have the potential to provide time and cost-efficient
benefits in estimating wood adhesion strength.