Journal
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
Volume 46, Issue 2, Pages 603-615Publisher
WILEY
DOI: 10.1111/ffe.13889
Keywords
deep learning; deep neural network (DNN); fracture toughness; partial dependence plot (PDP); polymer concrete
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This paper applies deep learning method to predict and model the fracture toughness of polymer concrete composites, considering seven important variables. The accuracy of the model is evaluated using statistical criteria and the sensitivity of each input variable is analyzed.
Using artificial intelligence-based methods in predicting material properties, in addition to high accuracy, saves time and money. This paper models and predicts the fracture toughness properties of polymer concrete (PC) composites using the deep learning method. After preparing a database consisting of 209 experimental data from 19 relevant studies, the effect of seven important variables on critical stress intensity factor (K-Ic) and crack tip opening displacement (CTOD) is considered. Then, the deep neural network (DNN) model is developed and trained using the prepared database. The accuracy of the DNN model is examined by implementing four statistical criteria, MSE, R-2, RMSE, and MAE. Finally, the sensitivity of the K-Ic and CTOD to each input variable is evaluated using a partial dependence plot (PDP) analysis. While aggregate size, nanofiller content, and a/R ratio have the most positive effect on K-Ic, aggregates and nanofiller content have the most positive influence on CTOD.
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