Instability-induced pattern generation in architectured materials—A review of methods
Architectured materials exhibit unconventional properties directly linked to their geometry.
When composed of slender elements, architectured materials can undergo large …
When composed of slender elements, architectured materials can undergo large …
[HTML][HTML] Chirality in 2D Cosserat media related to stretch-micro-rotation coupling with links to granular micromechanics
Cosserat continuum model has attracted increasing interest for describing the mechanical
behavior of microstructured solids. Existing formulation of Cosserat continuum model often …
behavior of microstructured solids. Existing formulation of Cosserat continuum model often …
[HTML][HTML] Computational second-order homogenization of materials with effective anisotropic strain-gradient behavior
A computational homogenization method to determine the effective parameters of Mindlin's
Strain Gradient Elasticity (SGE) model from a local heterogeneous Cauchy linear material is …
Strain Gradient Elasticity (SGE) model from a local heterogeneous Cauchy linear material is …
Second-order computational homogenisation enhanced with non-uniform body forces for non-linear cellular materials and metamaterials
Although “classical” multi-scale methods can capture the behaviour of cellular, including
lattice, materials, when considering lattices or metamaterial local instabilities, corresponding …
lattice, materials, when considering lattices or metamaterial local instabilities, corresponding …
Anisotropic strain gradient thermoelasticity for cellular structures: Plate models, homogenization and isogeometric analysis
S Khakalo, J Niiranen - Journal of the Mechanics and Physics of Solids, 2020 - Elsevier
For three-dimensional cellular plate-like structures with a triangular (extruded lattice)
microarchitecture, the article develops a pair of two-scale plate models relying on the …
microarchitecture, the article develops a pair of two-scale plate models relying on the …
Experimental verification of 2D Cosserat chirality with stretch-micro-rotation coupling in orthotropic metamaterials with granular motif
Chiral effects in 2D Cosserat continuum model may arise from coupling between stretching
deformations and the micro-rotation for hemitropic materials. An orthotropic 2D chiral …
deformations and the micro-rotation for hemitropic materials. An orthotropic 2D chiral …
[HTML][HTML] Mechanical properties of hierarchical lattice via strain gradient homogenization approach
With the advancement of 3D printing technology, manufacturing metamaterials with extreme
mechanical properties is becoming more feasible. Hierarchical lattices appear to be ideal …
mechanical properties is becoming more feasible. Hierarchical lattices appear to be ideal …
[HTML][HTML] Lattice structures as thermoelastic strain gradient metamaterials: Evidence from full-field simulations and applications to functionally step-wise-graded beams
S Khakalo, J Niiranen - Composites Part B: Engineering, 2019 - Elsevier
The present work investigates the mechanical and thermomechanical bending response of
beam structures possessing a triangular lattice microarchitecture. The validity of generalized …
beam structures possessing a triangular lattice microarchitecture. The validity of generalized …
Chiral metamaterial predicted by granular micromechanics: verified with 1D example synthesized using additive manufacturing
Granular micromechanics approach (GMA) provides a predictive theory for granular material
behavior by connecting the grain-scale interactions to continuum models. Here, we have …
behavior by connecting the grain-scale interactions to continuum models. Here, we have …
[HTML][HTML] Complete symmetry classification and compact matrix representations for 3D strain gradient elasticity
N Auffray, QC He, H Le Quang - International Journal of Solids and …, 2019 - Elsevier
Abstract Strain Gradient Elasticity (SGE) is now often used in mechanics and physics, owing
to its capability to model some non-classical phenomena, such as size effects, in materials …
to its capability to model some non-classical phenomena, such as size effects, in materials …