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Pré-Publication, Document De Travail Année : 2024

Sparse approximations for contact mechanics

Résumé

Low-rank model order reduction strategies for contact mechanics show limited dimensionality reduction due to linear inseparability of contact pressure field. Therefore, a dictionary based strategy is explored for creating efficient models for frictionless non-adhesive contact. A large dictionary of contact pressure trajectories is generated using a high-fidelity finite element model, while approximating the online query with a small number of dictionary entries. This is achieved by inducing sparsity in the approximation. Accuracy, computational effort and limitations of such methods are demonstrated on few numerical examples.
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hal-04615501 , version 1 (18-06-2024)

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Kiran Sagar Kollepara, José V Aguado, Yves Le Guennec, Luisa Silva, Domenico Borzacchiello. Sparse approximations for contact mechanics. 2024. ⟨hal-04615501⟩
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