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Macroscale Chirality in Planar Elasticity: Predictions of Granular Micromechanics based Extended Micropolar Model Confirmed via Classical Micro Finite Element Simulations
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DOI：10.1016/j.jmps.2026.106664.png)
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Abstract
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Research highlights • Micro-macro linkages provided by granular micromechanics approach (GMA) predict rarely reported macroscale chirality due to coupling of stretching deformations and micro-rotation leading to an extended micropolar model. • GMA based micropolar model is leveraged to conceive a 2D chiral metamaterial of granular motif using pre-designed grain-pair behavior. • Efficacy of GMA micro-macro linkages and predicted micropolar verified through full-field micro-scale finite element (FE) simulations based upon classical continuum model.
Keywords:
Granular micromechanics
Micropolar model
Macroscale chirality
Chiral metamaterial
Micro-macro linkages
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