Critical comparison of potential machine learning methods for lightning thermal damage assessment of composite laminates

dc.contributor.authorLee, Juhyeong
dc.contributor.authorMillen, Scott L. J.
dc.contributor.authorXu, Xiaodong
dc.date.accessioned2024-11-21T11:23:00Z
dc.date.available2024-11-21T11:23:00Z
dc.date.freetoread2024-11-21
dc.date.issued2024-10-21
dc.date.pubOnline2024-10-21
dc.description.abstractThe present study assesses the potential of using machine learning (ML) methods to predict the extent of lightning thermal damage in fiber-reinforced composite laminates using three supervised machine learning (SML) algorithms: (1) linear regression (LR), (2) decision tree (DT)-based, and (3) MLP models. These models were based on the 10 most significant factors that influence the severity of lightning damage, including three current waveform parameters, four material configurations, and three orthogonal electrical conductivities of each composite. All models demonstrated good performance with coefficient of determination (R2) values between 0.84 ~ 0.96. The multilayer perceptron (MLP) regression model trained with the lightning matrix damage dataset showed the most promising results (R2 > 0.94). Additional hyperparameter optimization was performed to improve the prediction performance of the baseline MLP model. The hyperparameter optimization (Adam optimizer, tanh activation function, and three hidden layers with 234 neurons) slightly improved the performance of the baseline MLP model by ~0.02, but achieved faster convergence. This result suggests that the baseline MLP model trained with the lightning matrix damage dataset is sufficiently accurate and robust. This paper highlights that ML-informed regression models can serve as an efficient first pass-estimator of lightning matrix damage in composite laminates, potentially reducing the amount of extremely time-consuming and expensive laboratory-scale lightning tests or streamlining the development of complex lightning damage models for future design.
dc.description.journalNameAdvanced Composite Materials
dc.identifier.citationLee J, Millen SLJ, Xu X. (2024) Critical comparison of potential machine learning methods for lightning thermal damage assessment of composite laminates. Advanced Composite Materials, Available online 21 October 2024
dc.identifier.eissn1568-5519
dc.identifier.elementsID555597
dc.identifier.issn0924-3046
dc.identifier.issueNoahead-of-print
dc.identifier.urihttps://doi.org/10.1080/09243046.2024.2416169
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/23184
dc.identifier.volumeNoahead-of-print
dc.languageEnglish
dc.language.isoen
dc.publisherTaylor and Francis
dc.publisher.urihttps://www.tandfonline.com/doi/full/10.1080/09243046.2024.2416169
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject40 Engineering
dc.subject4016 Materials Engineering
dc.subjectMachine Learning and Artificial Intelligence
dc.subjectNetworking and Information Technology R&D (NITRD)
dc.subjectMaterials
dc.subject4005 Civil engineering
dc.subject4016 Materials engineering
dc.subject4017 Mechanical engineering
dc.titleCritical comparison of potential machine learning methods for lightning thermal damage assessment of composite laminates
dc.typeArticle
dcterms.dateAccepted2024-10-07

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