Data-Driven Failure Prediction in Brittle Materials: A Phase-Field Based Machine Learning Framework

• URL: http://arxiv.org/abs/2003.10975v1
• Date: Tue, 24 Mar 2020 17:13:08 GMT
• Title: Data-Driven Failure Prediction in Brittle Materials: A Phase-Field Based Machine Learning Framework
• Authors: Eduardo A. Barros de Moraes, Hadi Salehi and Mohsen Zayernouri
• Abstract summary: Failure in brittle materials led by micro- to macro-cracks under repetitive or increasing loads is often catastrophic. We develop a supervised machine learning (ML) framework to predict failure in an isothermal, linear elastic and isotropic phase-field model. Results indicate that the proposed framework is capable of predicting failure with acceptable accuracy even in the presence of high noise levels.
• Score: 1.3858051019755282
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Failure in brittle materials led by the evolution of micro- to macro-cracks under repetitive or increasing loads is often catastrophic with no significant plasticity to advert the onset of fracture. Early failure detection with respective location are utterly important features in any practical application, both of which can be effectively addressed using artificial intelligence. In this paper, we develop a supervised machine learning (ML) framework to predict failure in an isothermal, linear elastic and isotropic phase-field model for damage and fatigue of brittle materials. Time-series data of the phase-field model is extracted from virtual sensing nodes at different locations of the geometry. A pattern recognition scheme is introduced to represent time-series data/sensor nodes responses as a pattern with a corresponding label, integrated with ML algorithms, used for damage classification with identified patterns. We perform an uncertainty analysis by superposing random noise to the time-series data to assess the robustness of the framework with noise-polluted data. Results indicate that the proposed framework is capable of predicting failure with acceptable accuracy even in the presence of high noise levels. The findings demonstrate satisfactory performance of the supervised ML framework, and the applicability of artificial intelligence and ML to a practical engineering problem, i.,e, data-driven failure prediction in brittle materials.

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