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arxivcs.LG2026-07-10

Learning Physics-Informed Surrogate Model of Linear Elastic Displacement Fields from Geometry

Rodolphe Barlogis, Ferhat Tamssaouet, Quentin Falcoz, Stéphane Grieu

This work aims to develop a fast and physically consistent surrogate model for real-time structural health monitoring of fractured elastic domains. We propose a physics-informed DeepONet framework that predicts displacement fields from both boundary conditions and fracture geometry, using a dedicated encoding strategy for the latter and without relying on finite-element-generated training data. The traction-free condition on the fracture boundary is imposed weakly through a localized penalty term. The presented numerical example focuses on one representative fracture geometry, demonstrating the feasibility of the formulation and laying the groundwork for extensions to surrogate modeling across diverse fracture geometries.

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Physics-Informed Machine Learning Under Small-Data Constraints: Lessons from Abrasive Waterjet Milling

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In physically dominated machining processes, experimental datasets are small, expensive, and material-specific; in this regime, data curation, evaluation design, and the form of physics integration can matter as much as the learning algorithm. Using an abrasive waterjet milling d…

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