Systematic Performance Assessment of Deep Material Networks for Multiscale Material Modeling

• URL: http://arxiv.org/abs/2602.07192v1
• Date: Fri, 06 Feb 2026 20:55:27 GMT
• Title: Systematic Performance Assessment of Deep Material Networks for Multiscale Material Modeling
• Authors: Xiaolong He, Haoyan Wei, Wei Hu, Henan Mao, C. T. Wu,
• Abstract summary: Deep Material Networks (DMNs) are structure-preserving, mechanistic machine learning models that embed micromechanical principles into their architectures.<n>Despite their growing adoption, systematic evaluations of their performance across the full offline-online pipeline remain limited.<n>This work presents a comprehensive comparative assessment of DMNs with respect to prediction accuracy, computational efficiency, and training robustness.
• Score: 10.97515056115661
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Deep Material Networks (DMNs) are structure-preserving, mechanistic machine learning models that embed micromechanical principles into their architectures, enabling strong extrapolation capabilities and significant potential to accelerate multiscale modeling of complex microstructures. A key advantage of these models is that they can be trained exclusively on linear elastic data and then generalized to nonlinear inelastic regimes during online prediction. Despite their growing adoption, systematic evaluations of their performance across the full offline-online pipeline remain limited. This work presents a comprehensive comparative assessment of DMNs with respect to prediction accuracy, computational efficiency, and training robustness. We investigate the effects of offline training choices, including initialization, batch size, training data size, and activation regularization on online generalization performance and uncertainty. The results demonstrate that both prediction error and variance decrease with increasing training data size, while initialization and batch size can significantly influence model performance. Moreover, activation regularization is shown to play a critical role in controlling network complexity and therefore generalization performance. Compared with the original DMN, the rotation-free Interaction-based Material Network (IMN) formulation achieves a 3.4x - 4.7x speed-up in offline training, while maintaining comparable online prediction accuracy and computational efficiency. These findings clarify key trade-offs between model expressivity and efficiency in structure-preserving material networks and provide practical guidance for their deployment in multiscale material modeling.

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