Towards a Real-Time Simulation of Elastoplastic Deformation Using Multi-Task Neural Networks

• URL: http://arxiv.org/abs/2411.05575v1
• Date: Fri, 08 Nov 2024 14:04:17 GMT
• Title: Towards a Real-Time Simulation of Elastoplastic Deformation Using Multi-Task Neural Networks
• Authors: Ruben Schmeitz, Joris Remmers, Olga Mula, Olaf van der Sluis,
• Abstract summary: This study introduces a surrogate modeling framework merging proper decomposition, long short-term memory networks, and multi-task learning, to accurately predict elastoplastic deformations in real-time. The framework achieves a mean absolute error below 0.40% across various state variables. In our use cases, a pre-trained multi-task model can effectively train additional variables with as few as 20 samples, demonstrating its deep understanding of complex scenarios.
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• Abstract: This study introduces a surrogate modeling framework merging proper orthogonal decomposition, long short-term memory networks, and multi-task learning, to accurately predict elastoplastic deformations in real-time. Superior to single-task neural networks, this approach achieves a mean absolute error below 0.40\% across various state variables, with the multi-task model showing enhanced generalization by mitigating overfitting through shared layers. Moreover, in our use cases, a pre-trained multi-task model can effectively train additional variables with as few as 20 samples, demonstrating its deep understanding of complex scenarios. This is notably efficient compared to single-task models, which typically require around 100 samples. Significantly faster than traditional finite element analysis, our model accelerates computations by approximately a million times, making it a substantial advancement for real-time predictive modeling in engineering applications. While it necessitates further testing on more intricate models, this framework shows substantial promise in elevating both efficiency and accuracy in engineering applications, particularly for real-time scenarios.

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