40 citations · 80 across the 6 of their papers we have counts for
7 papers
A guide to enriched continuum modeling: advances on wave propagation in metamaterials through the relaxed micromorphic framework
Jendrik Voss, Svenja Hermann, Mohammad Sarhil +2
This contribution provides a systematic framework for modeling the dispersive behavior of mechanical metamaterials by an enriched continua approach using the relaxed micromorphic m…
Breaking Scale Separation in Metamaterials' homogenization: Interface-Inertia-Enhanced Relaxed Micromorphic Model
Angela Madeo, Leonardo Perez, Mohammad Sarhil
Homogenized continuum models are widely used to describe wave propagation and band-gap behavior in mechanical metamaterials without explicitly resolving their microstructure. Their…
Static size-effects meet the dynamic scattering properties of finite-sized mechanical metamaterials: a relaxed micromorphic study with parameter identification via two-stage static-dynamic optimization
Mohammad Sarhil, Leonardo Andres Perez Ramirez, Max Jendrik Voss +1
Mechanical metamaterials exhibit size-effects when a few unit-cells are subjected to static loading because no clear micro-macro scale separation holds and the characteristic lengt…
A computational approach to identify the material parameters of the relaxed micromorphic model
Mohammad Sarhil, Lisa Scheunemann, Peter Lewintan +2
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 squa…
Multi-phase-field elasticity model based on partial rank-one energy relaxation on pairwise interfaces
Mohammad Sarhil, Oleg Shchyglo, Hesham Salama +3
To model mechanically-driven phase transformations using the phase-field theory, suitable models are needed for describing the mechanical fields related to individual phase-fields…
Size-effects of metamaterial beams subjected to pure bending: on boundary conditions and parameter identification in the relaxed micromorphic model
Mohammad Sarhil, Lisa Scheunemann, Jörg Schröder +1
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 stiffnes…
Lagrange and based Finite Element formulations for the relaxed micromorphic model
Jörg Schröder, Mohammad Sarhil, Lisa Scheunemann +1
Modeling the unusual mechanical properties of metamaterials is a challenging topic for the mechanics community and enriched continuum theories are promising computational tools for…