A review of inverse problems for generalized elastic media: formulations, experiments, synthesis
Starting from the seminal works of Toupin, Mindlin and Germain, a wide class of generalized
elastic models have been proposed via the principle of virtual work, by postulating …
elastic models have been proposed via the principle of virtual work, by postulating …
Modelling size-dependent bending, buckling and vibrations of 2D triangular lattices by strain gradient elasticity models: applications to sandwich beams and auxetics
The present work is devoted to the modelling of strongly size-dependent bending, buckling
and vibration phenomena of 2D triangular lattices with the aid of a simplified first strain …
and vibration phenomena of 2D triangular lattices with the aid of a simplified first strain …
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 …
Granular micromechanics‐based identification of isotropic strain gradient parameters for elastic geometrically nonlinear deformations
Although the primacy and utility of higher‐gradient theories are being increasingly accepted,
values of second gradient elastic parameters are not widely available due to lack of …
values of second gradient elastic parameters are not widely available due to lack of …
Strain gradient elasticity theory of polymer networks
In physically (statistically) based theories for rubber-like materials, network models serve as
a bridge that connects chain dynamics to continuum constitutive relations. However, there is …
a bridge that connects chain dynamics to continuum constitutive relations. However, there is …
Numerical identification of constitutive parameters in reduced-order bi-dimensional models for pantographic structures: application to out-of-plane buckling
Mechanical properties are investigated for a class of microstructured materials with
promising applications. Specifically, we consider a composite material with orthogonal …
promising applications. Specifically, we consider a composite material with orthogonal …
A nonlinear Lagrangian particle model for grains assemblies including grain relative rotations
We formulate a discrete Lagrangian model for a set of interacting grains, which is purely
elastic. The considered degrees of freedom for each grain include placement of barycenter …
elastic. The considered degrees of freedom for each grain include placement of barycenter …
The macroscopic behavior of pantographic sheets depends mainly on their microstructure: experimental evidence and qualitative analysis of damage in metallic …
Recently the exotic properties of pantographic metamaterials have been investigated, and
various mathematical models (both discrete and continuous) have been introduced …
various mathematical models (both discrete and continuous) have been introduced …
[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 …
[HTML][HTML] Microarchitecture-dependent nonlinear bending analysis for cellular plates with prismatic corrugated cores via an anisotropic strain gradient plate theory of …
J Torabi, J Niiranen - Engineering Structures, 2021 - Elsevier
This study focuses on the microarchitecture-dependent nonlinear bending behavior of
cellular plates with equitriangularly prismatic microarchitectures by adopting a dimensionally …
cellular plates with equitriangularly prismatic microarchitectures by adopting a dimensionally …