Homogenization of architected materials incorporating shearable beams

Fuente: arXiv
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Main Authors: Franzoi, Matteo, Bigoni, Davide, Piccolroaz, Andrea
Format: Preprint
Published: 2025
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author Franzoi, Matteo
Bigoni, Davide
Piccolroaz, Andrea
author_facet Franzoi, Matteo
Bigoni, Davide
Piccolroaz, Andrea
contents Two-dimensional architected materials are often realized as periodic grids of elastic beams. Conventional homogenization methods represent these structures as equivalent elastic solids but neglect shear deformation in the constituent beams. This article addresses this limitation by incorporating shear deformability through Timoshenko beam theory, enabling accurate modeling of stubby beams. Moreover, shearable beams with extreme mechanical characteristics can be obtained through the design of appropriate microstructures. Introducing shearable beams into the grid expands the design space, allowing, for instance, the control of the effective Poisson's ratio beyond the limits achievable with slender beams.
format Preprint
id arxiv_https___arxiv_org_abs_2512_05575
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Homogenization of architected materials incorporating shearable beams
Franzoi, Matteo
Bigoni, Davide
Piccolroaz, Andrea
Classical Physics
Two-dimensional architected materials are often realized as periodic grids of elastic beams. Conventional homogenization methods represent these structures as equivalent elastic solids but neglect shear deformation in the constituent beams. This article addresses this limitation by incorporating shear deformability through Timoshenko beam theory, enabling accurate modeling of stubby beams. Moreover, shearable beams with extreme mechanical characteristics can be obtained through the design of appropriate microstructures. Introducing shearable beams into the grid expands the design space, allowing, for instance, the control of the effective Poisson's ratio beyond the limits achievable with slender beams.
title Homogenization of architected materials incorporating shearable beams
topic Classical Physics
url https://arxiv.org/abs/2512.05575