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- W4288793713 abstract "Force chains, which are quasi-linear self-organised structures carrying large stresses, are ubiquitous in jammed amorphous materials, such as granular materials, foams, emulsions or even assemblies of cells. Predicting where they will form upon mechanical deformation is crucial in order to describe the physical properties of such materials, but remains an open question. Here we demonstrate that graph neural networks (GNN) can accurately infer the location of these force chains in frictionless materials from the local structure prior to deformation, without receiving any information about the inter-particle forces. Once trained on a prototypical system, the GNN prediction accuracy proves to be robust to changes in packing fraction, mixture composition, amount of deformation, and the form of the interaction potential. The GNN is also scalable, as it can make predictions for systems much larger than those it was trained on. Our results and methodology will be of interest for experimental realizations of granular matter and jammed disordered systems, e.g. in cases where direct visualisation of force chains is not possible or contact forces cannot be measured." @default.
- W4288793713 created "2022-07-30" @default.
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- W4288793713 date "2021-05-18" @default.
- W4288793713 modified "2023-09-29" @default.
- W4288793713 title "Robust Prediction of Force Chains in Jammed Solids using Graph Neural Networks" @default.
- W4288793713 doi "https://doi.org/10.48550/arxiv.2105.08505" @default.
- W4288793713 hasPublicationYear "2021" @default.
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