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| Camp DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.contributor.author | Тимощук, Дмитро | |
| dc.contributor.author | Ясній, Олег Петрович | |
| dc.contributor.author | Tymoshchuk, Dmytro | |
| dc.contributor.author | Yasniy, Oleh | |
| dc.date.accessioned | 2026-02-09T15:51:56Z | - |
| dc.date.available | 2026-02-09T15:51:56Z | - |
| dc.date.created | 2025-08-29 | |
| dc.date.issued | 2025-08-29 | |
| dc.date.submitted | 2025-07-15 | |
| dc.identifier.citation | Tymoshchuk D. Information technology for predicting the hysteresis behavior of shape memory alloys based on a stacking ensemble machine learning model / Dmytro Tymoshchuk, Oleh Yasniy // Scientific Journal of TNTU. — Tern. : TNTU, 2025. — Vol 119. — No 3. — P. 134–146. | |
| dc.identifier.issn | 2522-4433 | |
| dc.identifier.uri | http://elartu.tntu.edu.ua/handle/lib/51487 | - |
| dc.description.abstract | Сплави з пам’яттю форми (СПФ) характеризуються нелінійною гістерезисною поведінкою на діаграмі деформування (σ–ε), площа петлі якої визначає енергію, розсіяну за цикл. Запропоновано ансамблеву Stacking-модель машинного навчання для прогнозування гістерезисної поведінки СПФ за умов циклічного навантаження з різними частотами (0,5; 1; 3 та 5 Гц). Для побудови моделі використано експериментальні дані 100–250 циклів навантаження. У якості базових алгоритмів застосовано Random Forest, Gradient Boosting, Extra Trees, kNN, SVR та MLP. За метамодель вибрано ElasticNet, яку налаштовано за допомогою GridSearchCV з GroupKFold-валідацією. Такий підхід забезпечив поєднання стабільності ансамблю з адаптивним відбором найінформативніших прогнозів базових моделей. Отримані результати показали високу точність відтворення залежності напруження-деформація. Для тестових даних R2 > 0,995, MSE < 0,0007, MAE < 0,02, MAPE < 1,3 %. Перевірка на незалежних циклах 251 та 300 підтвердила узагальнювальну здатність моделі, зокрема R² > 0,974, MSE < 0,007, MAE < 0,06, MAPE < 4.8 %. Інтерпретованість моделі забезпечено методом SHAP, який кількісно визначає внесок кожної вхідної ознаки у формування прогнозу. Встановлено, що Stress є головним чинником формування прогнозу, тоді як ознака UpDown визначає фазу навантаження-розвантаження, а Cycle відображає накопичення циклічних ефектів. Розроблена ансамблева Stacking-модель є складовою інформаційної технології прогнозування гістерезисної поведінки сплавів з пам’яттю форми із застосуванням методів машинного навчання. Запропонований підхід забезпечує не лише високу точність прогнозування, але й фізично обґрунтовану інтерпретованість результатів | |
| dc.description.abstract | Shape Memory Alloys are characterized by a nonlinear hysteretic behavior on the stress–strain (σ–ε) diagram, where the loop area determines the amount of energy dissipated per cycle. In this work, an ensemble Stacking machine learning model was developed to predict the hysteresis behavior of SMAs under cyclic loading at different frequencies (0.5, 1, 3, and 5 Hz). The model was constructed using experimental data from 100–250 loading cycles. Random Forest, Gradient Boosting, Extra Trees, k-Nearest Neighbors (kNN), Support Vector Regression (SVR), and Multilayer Perceptron (MLP) were employed as base algorithms. The ElasticNet model was selected as the meta-learner and tuned using GridSearchCV with GroupKFold validation. This approach ensured the combination of ensemble stability with adaptive selection of the most informative predictions from the base models. The obtained results showed a high accuracy in reproducing the stress–strain relationship: R2 > 0.995, MSE < 0.0007, MAE < 0.02, and MAPE < 1.3 % on the test data. Validation on independent cycles 251 and 300 confirmed the model’s generalization ability, achieving R2 > 0.974, MSE < 0.007, MAE < 0.06, and MAPE < 4.8 %. The interpretability of the model was provided by the SHAP method, which quantitatively determines the contribution of each input feature to the prediction. It was found that Stress is the dominant factor influencing the prediction, while UpDown defines the loading–unloading phase, and Cycle reflects the accumulation of cyclic effects. The developed ensemble Stacking model is an integral component of an information technology framework for predicting the hysteresis behavior of shape memory alloys using machine learning methods. The proposed approach provides not only high prediction accuracy but also a physically grounded interpretability of the results | |
| dc.format.extent | 134-146 | |
| dc.language.iso | en | |
| dc.publisher | ТНТУ | |
| dc.publisher | TNTU | |
| dc.relation.ispartof | Вісник Тернопільського національного технічного університету, 3 (119), 2025 | |
| dc.relation.ispartof | Scientific Journal of the Ternopil National Technical University, 3 (119), 2025 | |
| dc.relation.uri | https://doi.org/10.1016/j.matpr.2019.10.115 | |
| dc.relation.uri | https://doi.org/10.3390/biomimetics10060378 | |
| dc.relation.uri | https://doi.org/10.3390/act13100425 | |
| dc.relation.uri | https://doi.org/10.1016/B978-0-12-819264-1.00024-8 | |
| dc.relation.uri | https://doi.org/10.3390/buildings14020483 | |
| dc.relation.uri | https://doi.org/10.1111/ffe.14331 | |
| dc.relation.uri | https://doi.org/10.3390/computers13120339 | |
| dc.relation.uri | https://www.ibm.com/think/topics/explainable-ai | |
| dc.relation.uri | https://doi.org/10.3390/s22155610 | |
| dc.relation.uri | https://doi.org/10.1016/j.matdes.2022.111513 | |
| dc.relation.uri | https://doi.org/10.1007/s11665-025-11236-z | |
| dc.relation.uri | https://doi.org/10.1016/j.commatsci.2023.112578 | |
| dc.relation.uri | https://doi.org/10.3390/ma17194754 | |
| dc.relation.uri | https://doi.org/10.1016/j.mtcomm.2024.110720 | |
| dc.relation.uri | https://doi.org/10.33108/visnyk_tntu2022.03.045 | |
| dc.relation.uri | https://scikit-learn.org/stable/modules/generated/sklearn.ensemble.StackingRegressor.html | |
| dc.relation.uri | https://scikit-learn.org/stable/modules/generated/sklearn.ensemble.RandomForestRegressor.html | |
| dc.relation.uri | https://www.ibm.com/think/topics/gradient-boosting | |
| dc.relation.uri | https://scikit-learn.org/stable/modules/generated/sklearn.ensemble.ExtraTreesRegressor.html | |
| dc.relation.uri | https://scikit-learn.org/stable/modules/neighbors.html | |
| dc.relation.uri | https://scikit-learn.org/stable/modules/svm.html | |
| dc.relation.uri | https://scikit-learn.org/stable/modules/generated/sklearn.linear_model.ElasticNet.html | |
| dc.relation.uri | https://scikit-learn.org/stable/modules/model_evaluation.html#model-evaluation | |
| dc.relation.uri | https://github.com/shap/shap | |
| dc.subject | SMA | |
| dc.subject | гістерезис | |
| dc.subject | машинне навчання | |
| dc.subject | ансамблева модель | |
| dc.subject | Stacking Regressor | |
| dc.subject | ElasticNet | |
| dc.subject | Explainable AI (XAI) | |
| dc.subject | SHAP-аналіз | |
| dc.subject | прогнозування деформації | |
| dc.subject | циклічне навантаження | |
| dc.subject | SMA | |
| dc.subject | hysteresis | |
| dc.subject | machine learning | |
| dc.subject | ensemble model | |
| dc.subject | Stacking Regressor | |
| dc.subject | ElasticNet | |
| dc.subject | Explainable AI (XAI) | |
| dc.subject | SHAP analysis | |
| dc.subject | strain prediction | |
| dc.subject | information technology | |
| dc.title | Information technology for predicting the hysteresis behavior of shape memory alloys based on a stacking ensemble machine learning model | |
| dc.title.alternative | Інформаційна технологія прогнозування гістерезисної поведінки сплавів з пам’яттю форми на основі ансамблевої stacking-моделі машинного навчання | |
| dc.type | Article | |
| dc.rights.holder | © Ternopil Ivan Puluj National Technical University, 2025 | |
| dc.coverage.placename | Тернопіль | |
| dc.coverage.placename | Ternopil | |
| dc.format.pages | 13 | |
| dc.subject.udc | 004.9 | |
| dc.subject.udc | 006.3 | |
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| dc.identifier.doi | https://doi.org/10.33108/visnyk_tntu2025.03.134 | |
| dc.contributor.affiliation | Тернопільський національний технічний університет імені Івана Пулюя, Тернопіль, Україна | |
| dc.contributor.affiliation | Ternopil Ivan Puluj National Technical University, Ternopil, Ukraine | |
| dc.citation.journalTitle | Вісник Тернопільського національного технічного університету | |
| dc.citation.volume | 119 | |
| dc.citation.issue | 3 | |
| dc.citation.spage | 134 | |
| dc.citation.epage | 146 | |
| dc.identifier.citation2015 | Tymoshchuk D., Yasniy O. Information technology for predicting the hysteresis behavior of shape memory alloys based on a stacking ensemble machine learning model // Scientific Journal of TNTU, Ternopil. 2025. Vol 119. No 3. P. 134–146. | |
| dc.identifier.citationenAPA | Tymoshchuk, D., & Yasniy, O. (2025). Information technology for predicting the hysteresis behavior of shape memory alloys based on a stacking ensemble machine learning model. Scientific Journal of the Ternopil National Technical University, 119(3), 134-146. TNTU.. | |
| dc.identifier.citationenCHICAGO | Tymoshchuk D., Yasniy O. (2025) Information technology for predicting the hysteresis behavior of shape memory alloys based on a stacking ensemble machine learning model. Scientific Journal of the Ternopil National Technical University (Tern.), vol. 119, no 3, pp. 134-146. | |
| Apareix a les col·leccions: | Вісник ТНТУ, 2025, № 3 (119) | |
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