Application of the Bending-Gradient theory to a beam lattice
Résumé
The Bending-Gradient theory for thick plates is the extension to heterogeneous plates of Reissner-Mindlin theory originally designed for homogeneous plates. The Bending-Gradient theory was extended to in-plane periodic structures made of connected beams (space frames) which can be considered macroscopically as a plate in [1]. Its application to a square beam lattice reveals that classical Reissner-Mindlin theory cannot properly model such microstructures. Comparisons with exact solutions show that only the Bending-Gradient theory captures second order effects in both deflection and local stress fields.
Domaines
Mécanique [physics]Origine | Fichiers produits par l'(les) auteur(s) |
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