Metamaterials exhibit materials response deviation from conventional elasticity. This
phenomenon is captured by the generalized elasticity as a result of extending the theory at …

Strain gradient theory is an accurate model for capturing the size effect and localization
phenomena. However, the challenge in identification of corresponding constitutive …

By using modern additive manufacturing techniques, a structure at the millimeter length
scale (macroscale) can be produced showing a lattice substructure of micrometer …

With the advancement of 3D printing technology, manufacturing metamaterials with extreme
mechanical properties is becoming more feasible. Hierarchical lattices appear to be ideal …

Metamaterials response is generally modeled by generalized continuum based theories.
Their inherent substructure leads to a necessity for higher‐order theories, and especially in …

Architected materials have witnessed tremendous research activity in the last two decades,
due to their ability to achieve unprecedented effective properties. The up-scaling of the …

The present contribution aims to revisit higher-order homogenization schemes towards
micromorphic media based on variational principles and an extension of Hill …

The micromorphic theory of Eringen and Mindlin, including special cases like strain gradient
theory or Cosserat theory, is widely used to model size effects and localization phenomena …

Triaxial compression tests are conducted on semi-through jointed mudstone samples at
conditions of different confining pressures and inclination angles. With the help of …

Based on a two-scale asymptotic analysis procedure, we rigorously derive a new
macroscopic brittle fracture model for materials with micro-cracks inside. Strain gradient …