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Physics-aware Recurrent Convolutional Neural Network to Assimilate Mesoscale Reactive Mechanics of Energetic Materials

Mar 24, 2026

The thermo-mechanical response of shock-initiated energetic materials (EMs) is highly influenced by their microstructures, presenting an opportunity to engineer EM microstructures in a “materials-by-design” framework. However, the current design practice is limited, as a large ensemble of simulations is required to construct the complex EM structure-property-performance linkages. Here the physics-aware recurrent convolutional (PARC) neural network is presented, a deep learning algorithm capable of learning the mesoscale thermo-mechanics of EM from a modest number of high-resolution direct numerical simulations (DNS). Validation results demonstrated that PARC could predict the themo-mechanical response of shocked EMs with comparable accuracy to DNS but with notably less computation time. The physics-awareness of PARC enhances its modeling capabilities and generalizability, especially when challenged in unseen prediction scenarios. It was also demonstrated that visualizing the artificial neurons at PARC can shed light on important aspects of EM thermos-mechanics and provide an additional lens for conceptualizing EM.

Authors

H. S. Udaykumar (University of Iowa) S. S. Baek (University of Virginia)

Additional Materials

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