10 citations · 67 across the 19 of their papers we have counts for
19 papers
Linear and nonlinear active microrheology of viscous, viscoelastic, and elastic media: A fluid particle dynamics approach
Muhammed Muhsin Abdul Azeez, Henning Reinken, Andreas M. Menzel
Active microrheology is an effective tool to determine the rheological properties of viscous, viscoelastic, or elastic materials on microscopic length scales. The positional respon…
Hydrodynamics substantially affects induced structure formation in magnetic fluids
Henning Reinken, Markus Heiber, Takeaki Araki +1
Magnetorheological fluids consist of micrometer-sized magnetic particles in a carrier liquid. Sufficiently strong external magnetic fields lead to the formation of string-like part…
Doubling the magnetorheological effect of magnetic elastomers
Lukas Fischer, Andreas M. Menzel
One of the most important properties of soft functionalized magnetic composite materials in view of their technological potential is given by the magnetorheological effect. It desc…
Elastic displacements and viscous flows in wedge-shaped geometries with a straight edge: Green's functions for perpendicular forces
Abdallah Daddi-Moussa-Ider, Andreas M. Menzel
Edges are abundant when elastic solids glide in guiding rails or fluids are contained in vessels. We here address induced displacements in elastic solids or small-scale flows in vi…
Elastic displacements and viscous hydrodynamic flows in wedge-shaped geometries with a straight edge: Green's functions for parallel forces
Abdallah Daddi-Moussa-Ider, Lukas Fischer, Marc Pradas +1
For homogeneous and isotropic linearly elastic solids and for incompressible fluids under low-Reynolds-number conditions the fundamental solutions of the associated continuum equat…
Oscillatory collective motion in viscoelastic and elastic active fluids and solids under circular confinement
Henning Reinken, Andreas M. Menzel
In an inspiring recent study, Xu et al. [Nat. Phys. 19, 46 (2023)] observed for a living active biofilm under circular confinement two emergent dynamic modes of collective motion i…
Rheologically tuned modes of collective transport in active viscoelastic films
Henning Reinken, Andreas M. Menzel
While many living biological media combine both viscous and elastic properties, most theoretical studies employ either purely fluid- or solid-like descriptions. We here use a unifi…
Unified description of viscous, viscoelastic, or elastic thin active films on substrates
Henning Reinken, Andreas M. Menzel
It is frequent for active or living entities to find themselves embedded in a surrounding medium. Resulting composite systems are usually classified as either active fluids or acti…
Collective excitations in active solids featuring alignment interactions
Yutaka Kinoshita, Nariya Uchida, Andreas M. Menzel
With increasing emphasis on the study of active solids, the features of these classes of nonequilibrium systems and materials beyond their mere existence shift into focus. One conc…
Self-sustained patchy turbulence in shear-thinning active fluids
Henning Reinken, Andreas M. Menzel
Bacterial suspensions and other active fluids are known to develop highly dynamical vortex states, denoted as active or mesoscale turbulence. We reveal the pronounced effect of non…
Rotational dynamics of a disk in a thin film of weakly nematic fluid subject to linear friction
Abdallah Daddi-Moussa-Ider, Elsen Tjhung, Marc Pradas +2
Dynamics at low Reynolds numbers experiences recent revival in the fields of biophysics and active matter. While in bulk isotropic fluids it is exhaustively studied, this is less s…
Effects of curvature on growing films of microorganisms
Yuta Kuroda, Takeshi Kawasaki, Andreas M. Menzel
To provide insight into the basic properties of emerging structures when bacteria or other microorganisms conquer surfaces, it is crucial to analyze their growth behavior during th…
Analytical expressions for the two basic modes of surface displacement and overall deformation of a free-standing or elastically embedded sphere
Lukas Fischer, Andreas M. Menzel
Calculating by analytical theory the deformation of finite-sized elastic bodies in response to internally applied forces is a challenge. Here, we derive explicit analytical express…
Internal sites of actuation and activation in thin elastic films and membranes of finite thickness
Tyler Lutz, Andreas M. Menzel, Abdallah Daddi-Moussa-Ider
Functionalized thin elastic films and membranes frequently feature internal sites of net forces or stresses. These are, for instance, active sites of actuation, or rigid inclusions…
Vortex pattern stabilization in thin films resulting from shear thickening of active suspensions
Henning Reinken, Andreas M. Menzel
The need for structuring on micrometer scales is abundant, for example, in view of phononic applications. We here outline a novel approach based on the phenomenon of active turbule…
Hydrodynamics of a disk in a thin film of weakly nematic fluid subject to linear friction
Abdallah Daddi-Moussa-Ider, Elsen Tjhung, Thomas Richter +1
To make progress towards the development of a theory on the motion of inclusions in thin structured films and membranes, we here consider as an initial step a circular disk in a tw…
Stochastic motion under nonlinear friction representing shear thinning
Theo Lequy, Andreas M. Menzel
We study stochastic motion under a nonlinear frictional force that levels off with increasing velocity. Specifically, our frictional force is of the so-called Coulomb-tanh type. At…
Magnetic elastomers as specific soft actuators -- predicting particular modes of deformation from selected configurations of magnetizable inclusions
Lukas Fischer, Andreas M. Menzel
Amongst the various fascinating types of material behavior featured by magnetic gels and elastomers are magnetostrictive effects. That is, deformations in shape or changes in volum…
Mediated interactions between rigid inclusions in two-dimensional elastic or fluid films
Sonja K. Richter, Andreas M. Menzel
Interactions between rigid inclusions in continuous three-dimensional linearly elastic solids and low-Reynolds-number viscous fluids have largely been quantified during the past. P…