Unravelling Size‐Dependent and Coupled Properties in Mechanical Metamaterials: A Couple‐Stress Theory Perspective (Adv. Sci. 13/2024)

Mechanical Metamaterials Featuring pioneers who laid the foundations of mathematical theory of elasticity, the research in article number 2305113 establishes a bridge among Cauchy continuum, Mindlin's couple-stress, Love-Kirchhoff plate, and Euler-Bernoulli beam theories for systematic design of materials with microstructure. Abdolhamid Akbarzadeh and co-workers present consistent and self-sufficient effective continuum theories for metamaterials, metaplates, and metabeams. Resorting to augmented asymptotic homogenization, they impart insights into size-dependant axial-twist, shear-bending, bending-twist, and double curvature bending couplings within the realm of mechanical metamaterials and metastructures.