Asymptotics and uniqueness of solutions of the elasticity system with the mixed Dirichlet–Robin boundary conditions

HA Matevossian - Mathematics, 2020 - mdpi.com
We study properties of generalized solutions of the Dirichlet–Robin problem for an elasticity
system in the exterior of a compact, as well as the asymptotic behavior of solutions of this …

Korn inequalities for shells with zero Gaussian curvature

Y Grabovsky, D Harutyunyan - Annales de l'Institut Henri Poincaré C …, 2018 - Elsevier
We consider shells with zero Gaussian curvature, namely shells with one principal curvature
zero and the other one having a constant sign. Our particular interests are shells that are …

Gaussian curvature as an identifier of shell rigidity

D Harutyunyan - Archive for Rational Mechanics and Analysis, 2017 - Springer
In the paper we deal with shells with non-zero Gaussian curvature. We derive sharp Korn's
first (linear geometric rigidity estimate) and second inequalities on that kind of shell for zero …

Mathematical problems in thin elastic sheets: scaling limits, packing, crumpling and singularities

B Dacorogna, N Fusco, S Müller, V Sverak… - Vector-Valued Partial …, 2017 - Springer
Thin elastic objects have fascinated mathematicians and engineers for centuries and more
recently have also become an object of intense study in theoretical physics, biology and …

Scaling instability in buckling of axially compressed cylindrical shells

Y Grabovsky, D Harutyunyan - Journal of nonlinear science, 2016 - Springer
In this paper, we continue the development of mathematically rigorous theory of “near-flip”
buckling of slender bodies of arbitrary geometry, based on hyperelasticity. In order to …

On the Korn interpolation and second inequalities in thin domains

D Harutyunyan - SIAM Journal on Mathematical Analysis, 2018 - SIAM
We consider shells of nonconstant thickness in three dimensional Euclidean space around
surfaces which have bounded principal curvatures. We derive Korn's interpolation inequality …

Rigorous derivation of the formula for the buckling load in axially compressed circular cylindrical shells

Y Grabovsky, D Harutyunyan - Journal of Elasticity, 2015 - Springer
The goal of this paper is to apply the recently developed theory of buckling of arbitrary
slender bodies to a tractable yet non-trivial example of buckling in axially compressed …

Optimal exponentials of thickness in Korn's inequalities for parabolic and elliptic shells

PF Yao - Annali di Matematica Pura ed Applicata (1923-), 2021 - Springer
We consider the scaling of the optimal constant in Korn's first inequality for elliptic and
parabolic shells which was first given by Grabovsky and Harutyunyan with hints coming from …

The Buckling Load of Cylindrical Shells Under Axial Compression Depends on the Cross-Sectional Curvature

D Harutyunyan, AM Rodrigues - Journal of Nonlinear Science, 2023 - Springer
It is known that the famous theoretical formula by Koiter for the critical buckling load of
circular cylindrical shells under axial compression does not coincide with the experimental …

Well-posedness of a time-harmonic elasticity problem in a half-strip

JL Akian - arXiv preprint arXiv:2206.11012, 2022 - arxiv.org
In this paper we establish that the time-harmonic elasticity problem in a half-strip with non-
homogeneous Dirichlet conditions on its boundary section and traction-free conditions on its …