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- W4287252029 abstract "Science-based simulation tools such as Finite Element (FE) models are routinely used in scientific and engineering applications. While their success is strongly dependent on our understanding of underlying governing physical laws, they suffer inherent limitations including trade-off between fidelity/accuracy and speed. The recent rise of Machine Learning (ML) proposes a theory-agnostic paradigm. In complex multi-physics problems, however, creating large enough datasets for successful training of ML models has proven to be challenging. One promising strategy to bridge the divide between these approaches and take advantage of their respective strengths is Theory-Guided Machine Learning (TGML) which aims to integrate physical laws into ML algorithms. In this paper, three case studies on thermal management during processing of advanced composites are presented and studied using FE, ML and TGML. A structured approach to incrementally adding increasingly complex physics to training of TGML model is presented. The benefits of TGML over ML models are seen in more accurate predictions, particularly outside the training region, and ability to train with small datasets. One benefit of TGML over FE is significant speed improvement to potentially develop real-time feedback systems. A recent successful implementation of a TGML model to assess producibility of aerospace composite parts is presented." @default.
- W4287252029 created "2022-07-25" @default.
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- W4287252029 date "2021-03-29" @default.
- W4287252029 modified "2023-10-14" @default.
- W4287252029 title "Theory-Guided Machine Learning for Process Simulation of Advanced Composites" @default.
- W4287252029 doi "https://doi.org/10.48550/arxiv.2103.16010" @default.
- W4287252029 hasPublicationYear "2021" @default.
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