A review of inverse problems for generalized elastic media: formulations, experiments, synthesis

R Fedele, L Placidi, F Fabbrocino - Continuum Mechanics and …, 2024 - Springer
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 …

Modelling size-dependent bending, buckling and vibrations of 2D triangular lattices by strain gradient elasticity models: applications to sandwich beams and auxetics

S Khakalo, V Balobanov, J Niiranen - International Journal of Engineering …, 2018 - Elsevier
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 …

Free vibration analysis of porous plates with porosity distributions in the thickness and in-plane directions using isogeometric approach

Y Xue, G **, X Ma, H Chen, T Ye, M Chen… - International Journal of …, 2019 - Elsevier
The main purpose of this paper is to study the free vibration of porous square plate, circular
plate, and rectangle plate with a central circular hole in the framework of isogeometric …

[HTML][HTML] On the validation of homogenized modeling for bi-pantographic metamaterials via digital image correlation

E Barchiesi, F dell'Isola, F Hild - International Journal of Solids and …, 2021 - Elsevier
The derivation by variational asymptotic homogenization of a 2D-continuum model
describing large elastic planar deformations of a discrete bi-pantographic structure is …

Variational formulations, model comparisons and numerical methods for Euler–Bernoulli micro-and nano-beam models

J Niiranen, V Balobanov, J Kiendl… - … and Mechanics of …, 2019 - journals.sagepub.com
As a first step, variational formulations and governing equations with boundary conditions
are derived for a pair of Euler–Bernoulli beam bending models following a simplified version …

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 …

[HTML][HTML] Mechanical properties of hierarchical lattice via strain gradient homogenization approach

H Yang, Z Liu, Y **a, W Fan, AC Taylor… - Composites Part B …, 2024 - Elsevier
With the advancement of 3D printing technology, manufacturing metamaterials with extreme
mechanical properties is becoming more feasible. Hierarchical lattices appear to be ideal …

Three-point bending test of pantographic blocks: numerical and experimental investigation

ME Yildizdag, E Barchiesi… - … and Mechanics of …, 2020 - journals.sagepub.com
The equilibrium forms of pantographic blocks in a three-point bending test are investigated
via both experiments and numerical simulations. In the computational part, the …

Form II of Mindlin's second strain gradient theory of elasticity with a simplification: For materials and structures from nano-to macro-scales

S Khakalo, J Niiranen - European Journal of Mechanics-A/Solids, 2018 - Elsevier
The fundamental equations for Form II of Mindlin's second strain gradient elasticity theory for
isotropic materials are first derived. A corresponding simplified formulation is then proposed …

Locking-free variational formulations and isogeometric analysis for the Timoshenko beam models of strain gradient and classical elasticity

V Balobanov, J Niiranen - Computer Methods in Applied Mechanics and …, 2018 - Elsevier
The Timoshenko beam bending problem is formulated in the context of strain gradient
elasticity for both static and dynamic analysis. Two non-standard variational formulations in …