Grigor Nika

Identifiants chercheurs

IdHAL :

grigor-nika

ORCID :

0000-0002-4403-6908

Présentation

Grigor Nika Karlstad University Universitetsgatan 2 SE-65188 Karlstad

Intérêt de recherche

Technologies des matériaux critiques

Modélisation et homogénéisation des effets d'échelle

Mécanique des milieux continus généralisés

Thermodynamique des milieux continus

Optimisation topologique

Publications

Article dans une revue (15)

When Scale Matters: Size‐Dependent Mechanics of Architected Lattices for Implants and Beyond H. Veluvali,Sidharth Beniwal,Grigor Nika,Joep Kraeima,Patrick Oncket al. Small Structures, 2026, 7 (1), ⟨10.1002/sstr.202500434⟩ Article dans une revue hal-05463871v1
Simulation of effective scale-size dependent heat conduction in rigid microgeometries Mario Setta,Eddie Wadbro,Grigor Nika Computer Methods in Applied Mechanics and Engineering, 2026, 452, pp.118752. ⟨10.1016/j.cma.2026.118752⟩ Article dans une revue hal-05299481v1
Asymptotics of a heterogeneous Canham-Helfrich flexoelectric biomembrane Grigor Nika,Paul Steinmann,Michael Stingl Mathematics and Mechanics of Complex Systems, 2026, 14 (2), pp.257-283. ⟨10.2140/memocs.2026.14.257⟩ Article dans une revue hal-05044766v1
Thermodynamic modeling and derivation of effective properties for heterogeneous dielectrics Grigor Nika Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, In press, ⟨10.1098/rspa.2024.1001⟩ Article dans une revue hal-05106225v1
Entropy correctors in homogenization of microheterogeneous rigid bodies Grigor Nika SIAM Journal on Applied Mathematics, 2025, 86 (1), pp.260-278. ⟨10.1137/25M1778420⟩ Article dans une revue hal-05164000v1
Effective medium theory for second-gradient elasticity with chirality Grigor Nika,Adrian Muntean Asymptotic Analysis, 2024, pp.1-27. ⟨10.3233/ASY-241902⟩ Article dans une revue hal-04571844v1
Scale-size dependent multi-continuum homogenization of complex bodies Grigor Nika Quarterly of Applied Mathematics, 2024 Article dans une revue hal-04378065v2
On a hierarchy of effective models for the biomechanics of human compact bone tissue Grigor Nika IMA Journal of Applied Mathematics, In press, ⟨10.1093/imamat/hxad011⟩ Article dans une revue hal-03629864v2
Hypertemperature effects in heterogeneous media and thermal flux at small-length scales Grigor Nika,Adrian Muntean Networks and Heterogeneous Media, 2023, 18 (3), pp.1207-1225. ⟨10.3934/nhm.2023052⟩ Article dans une revue (article de synthèse) hal-04067022v1
A gradient system for a higher-gradient generalization of Fourier's law of heat conduction Grigor Nika Modern Physics Letters B, 2023, ⟨10.1142/S0217984923500112⟩ Article dans une revue hal-03724909v2
Cosserat continuum modelling of chiral scale-size effects and their influence on effective constitutive laws Grigor Nika Forces in Mechanics, 2022 Article dans une revue hal-03755074v2
Derivation of effective models from heterogenous Cosserat media via periodic unfolding Grigor Nika Ricerche di matematica, 2021 Article dans une revue hal-03156996v2
Design of thin micro-architectured panels with extension-bending coupling effects using topology optimization Filippo Agnelli,Grigor Nika,Andrei Constantinescu Computer Methods in Applied Mechanics and Engineering, 2021, 391, pp.114496. ⟨10.1016/j.cma.2021.114496⟩ Article dans une revue hal-03525449v1
Design of multi-layer materials using inverse homogenization and a level set method Grigor Nika,Andrei Constantinescu Computer Methods in Applied Mechanics and Engineering, 2019, 346, pp.388-409. ⟨10.1016/j.cma.2018.11.029⟩ Article dans une revue hal-02411495v1
Design and testing of 3D-printed micro-architectured polymer materials exhibiting a negative Poisson’s ratio Filippo Agnelli,Andrei Constantinescu,Grigor Nika Continuum Mechanics and Thermodynamics, 2019, ⟨10.1007/s00161-019-00851-6⟩ Article dans une revue hal-02410356v1

Pré-publication, Document de travail (6)

Thermodynamic modeling and derivation of effective properties for heterogeneous dielectrics Grigor Nika 2025 Pré-publication, Document de travail hal-04982935v1
Multi-continuum homogenization for scale-dependent materials in finite-sized structures H C V M Shyam Veluvali,Grigor Nika 2025 Pré-publication, Document de travail hal-05377382v1
Hypertemperature effects in heterogeneous media and thermal flux at small-length scales Grigor Nika,Adrian Muntean 2022 Pré-publication, Document de travail (preprint/prepublication) hal-03874976v1
An existence result for a class of nonlinear magnetorheological composites Grigor Nika,Bogdan Vernescu 2022 Pré-publication, Document de travail hal-03668453v1
DESIGN OF MULTI-LAYER MATERIALS USING INVERSE HOMOGENIZATION AND A LEVEL SET METHOD Grigor Nika,Andrei Constantinescu 2018 Pré-publication, Document de travail hal-01765230v1
HOMOGENIZATION FOR A MULTI-SCALE MODEL OF MAGNETORHEOLOGICAL SUSPENSION Grigor Nika,Bogdan Vernescu 2018 Pré-publication, Document de travail hal-01723274v1