Prediction of Displacement and Stress Values of Composite Materials Under Load with Machine Learning Models

Abstract

In this study, the determination of displacement and stress values under certain load of glass fiber and epoxy resin laminated reinforced composite materials by using machine learning models is targeted. In the scope of study, the modelling is done by changing the material properties of varied laminations of composite samples via Ansys software and a tensile force is implemented in order to receive the total deformation and Von Misses stresses under the implemented tensile force and creation of the dataset is completed. The robust linear regression and Gaussian process regression models from machine learning algorithms are used to predict and determine the total deformation and Von Misses stresses by training and testing the models with the dataset created. As result, the predicted values obtained from trained and tested regression models and the real values obtained by modelling in Ansys are compared. Additionally, in consideration of model parameters for both regression models, the evaluation of true responses and correct prediction/determination is done. According to the results, Gaussian process regression model is determined as a better model for related study.