In this section
@inproceedings{Raaghav:2025,
author = {Raaghav, V and Bikos, D and Rago, A and Toni, F and Charalambides, M},
publisher = {IOS Press},
title = {Explainable prediction of the mechanical properties of composites with CNNs},
year = {2025}
}
TY - CPAPER
AB - Composites are amongst the most important materialsmanufactured today, as evidenced by their use in countless applications. In order to establish the suitability of composites in specific applications, finite element (FE) modelling, a numerical method based on partial differential equations, is the industry standard for assessing their mechanical properties. However, FE modelling is exceptionally costly from a computational viewpoint, a limitation which has led to efforts towards applying AI models to this task. However, in these approaches: the chosen model architectures were rudimentary, feed-forward neural networks giving limited accuracy; the studies focus on predicting elastic mechanical properties, without considering material strength limits; and the models lacked transparency, hindering trustworthiness by users. In this paper, we show that convolutional neural networks (CNNs) equipped with methods from explainable AI (XAI) can be successfully deployed to solve this problem. Ourapproach uses customised CNNs trained on a dataset we generate using transverse tension tests in FE modelling to predict composites’ mechanical properties, i.e., Young’s modulus and yield strength. We show empirically that our approach achieves high accuracy, outperforming a baseline, ResNet-34, in estimating the mechanical properties. We then use SHAP and Integrated Gradients, two post-hocXAI methods, to explain the predictions, showing that the CNNs use the critical geometrical features that influence the composites’ behaviour, thus allowing engineers to verify that the models are trust-worthy by representing the science of composites.
AU - Raaghav,V
AU - Bikos,D
AU - Rago,A
AU - Toni,F
AU - Charalambides,M
PB - IOS Press
PY - 2025///
TI - Explainable prediction of the mechanical properties of composites with CNNs
ER -
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