Stochastic interpretable machine learning based multiscale modeling in thermal conductivity of Polymeric graphene-enhanced composites

Verfasst von

Bokai Liu, Weizhuo Lu, Thomas Olofsson, Xiaoying Zhuang, Timon Rabczuk

Abstract

We introduce an interpretable stochastic integrated machine learning based multiscale approach for the prediction of the macroscopic thermal conductivity in Polymeric graphene-enhanced composites (PGECs). This method encompasses the propagation of uncertain input parameters from the meso to macro scale, implemented through a foundational bottom-up multi-scale framework. In this context, Representative Volume Elements in Finite Element Modeling (RVE-FEM) are employed to derive the homogenized thermal conductivity. Besides, we employ two sets of techniques: Regression-tree-based methods (Random Forest and Gradient Boosting Machine) and Neural networks-based approaches (Artificial Neural Networks and Deep Neural Networks). To ascertain the relative influence of factors on output estimations, the SHapley Additive exPlanations (SHAP) algorithm is integrated. This interpretable machine learning methodology demonstrates strong alignment with published experimental data. It holds promise as an efficient and versatile tool for designing new composite materials tailored to applications involving thermal management.

Details

Organisationseinheit(en)
Institut für Photonik
Externe Organisation(en)
Bauhaus-Universität Weimar
Universität Umeå
Typ
Artikel
Journal
Composite Structures
Band
327
Anzahl der Seiten
16
ISSN
0263-8223
Publikationsdatum
01.01.2024
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Keramische und Verbundwerkstoffe, Tief- und Ingenieurbau
Elektronische Version(en)
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-215912 (Zugang: Offen )
https://doi.org/10.1016/j.compstruct.2023.117601 (Zugang: Geschlossen )
 
Scopus-Zitationen
62
Field-Weighted Citation Impact (FWCI)
14.17
Zuletzt geändert
03.03.2026 01:44

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