In this work we develop new finite element discretisations of the shear-deformable Reissner– Mindlin plate problem based on the Hellinger–Reissner principle of symmetric stresses …
The classical Cauchy continuum theory is suitable to model highly homogeneous materials. However, many materials, such as porous media or metamaterials, exhibit a pronounced …
In this paper we model the size-effects of metamaterial beams under bending with the aid of the relaxed micromorphic continuum. We analyze first the size-dependent bending stiffness …
The relaxed micromorphic model is a generalized continuum model that is well-posed in the space X=[H 1] 3×[H (curl)] 3. Consequently, finite element formulations of the model rely on …
Modeling the unusual mechanical properties of metamaterials is a challenging topic for the mechanics community and enriched continuum theories are promising computational tools …
We determine the material parameters in the relaxed micromorphic generalized continuum model for a given periodic microstructure in this work. This is achieved through a least …
A Sky, I Muench - Finite Elements in Analysis and Design, 2024 - Elsevier
The Hilbert spaces H (curl) and H (div) are employed in various variational problems formulated in the context of the de Rham complex in order to guarantee well-posedness …
A Sky, A Zilian - International Journal of Solids and Structures, 2024 - Elsevier
In this work we introduce novel stress-only formulations of linear elasticity with special attention to their approximate solution using weighted residual methods. We present four …
We derive the Green's functions (concentrated force and couple in an infinite space) for the isotropic planar relaxed micromorphic model. Since the relaxed micromorphic model …