Published 2024 | Version v1
Conference proceeding Open

Influence of data filtering and noise on the calibration of constitutive models using machine learning techniques

  • 1. Universidade de Aveiro
  • 2. LASI
  • 3. Universidade de Coimbra

Description

Abstract. This work focuses on predicting material parameters that describe the plastic behaviour of metallic sheets using the XGBoost machine learning algorithm, with a dual focus on the influence of data filtering and data noise. A dataset was populated with finite element simulation results of cruciform tensile tests, including strain field data during the test. Different noise levels were added to the strain-related features of the dataset; additionally, a feature importance study was carried out to identify and select the most relevant features of the dataset. A systematic analysis shows how feature noise and selection individually and simultaneously influence the predictive performance of machine learning models. The results show that feature selection will greatly accelerate model training, without losing its predictive performance. Also, adding noise to the features does not have significant impact on model performance, highlighting the robustness of the models.

Notes

This work has received funding from the Research Fund for Coal and Steel under grant agreement No 888153. 

Notes

The authors also gratefully acknowledge the financial support of the Portuguese Foundation for Science and Technology (FCT) and by UE/FEDER through the programs CENTRO 2020 and COMPETE 2020, UIDB/00285/2020, UIDB/00481/2020 and UIDP/00481/2020-FCT, DOI 10.54499/UIDB/00481/2020 (https://doi.org/10.54499/UIDB/00481/2020) and DOI 10.54499/UIDP/00481/2020 (https://doi.org/10.54499/UIDP/00481/2020), CENTRO-01-0145-FEDER-022083, LA/P/0104/2020 and LA/P/0112/2020. It was also supported by the project RealForm (reference 2022.02370.PTDC), funded by Portuguese Foundation for Science and Technology. J. Henriques was supported by a grant for scientific research from the Portuguese Foundation for Science and Technology (ref. 2021.05692.BD)

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Influence of data filtering and noise on the calibration of constitutive models.pdf

Additional details

Funding

European Commission
Vform-xsteels 888153