Antonin Eddi
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View article: An integrated multi-instrument methodology for studying marginal ice zone dynamics and wave-ice interactions
An integrated multi-instrument methodology for studying marginal ice zone dynamics and wave-ice interactions Open
Wave-driven fragmentation is a key mechanism shaping the Marginal Ice Zone (MIZ). Capturing this process is therefore essential for improving sea ice models, which currently do not fully capture the complex interactions between the forcing…
View article: Measuring the local mechanical properties of a floating elastic sheet
Measuring the local mechanical properties of a floating elastic sheet Open
Polar regions are covered by sea ice, which can be seen as a thin solid elastic sheet with heterogeneous mechanical properties. The dynamics of deformation of a floating solid sheet is primarily governed by gravity, water density, and the …
View article: An integrated multi-instrument methodology for studying marginal ice zone dynamics and wave-ice interactions
An integrated multi-instrument methodology for studying marginal ice zone dynamics and wave-ice interactions Open
Wave-driven fragmentation is the key mechanism shaping the Marginal Ice Zone (MIZ). Capturing this process is therefore essential for improving sea ice models, which currently do not fully capture the complex interactions between the forci…
View article: An analog experiment of sea-ice fracture by waves at the laboratory scale.
An analog experiment of sea-ice fracture by waves at the laboratory scale. Open
We study at the laboratory scale the rupture of thin floating sheets made of a brittle material under wave induced mechanical forcing. We show that the rupture occurs where the curvature is maximum, and the break up threshold strongly depe…
View article: Distributed network of smartphone sensors: a new tool for scientific field measurements
Distributed network of smartphone sensors: a new tool for scientific field measurements Open
Smartphones sensors are now commonly used by a worldwide audience thanks to their availability, high connectivity, and versatility. Here, we present a methodology to use a collection of smartphones, namely a fleet, as a distributed network…
View article: Resonance of an object floating within a surface wavefield
Resonance of an object floating within a surface wavefield Open
We examine the interaction between floating cylindrical objects and surface waves in the gravity regime. Since the impact of resonance phenomena associated with floating bodies, particularly at laboratory scales, remains underexplored, we …
View article: Wave induced fracture of a sea ice analog
Wave induced fracture of a sea ice analog Open
We study at the laboratory scale the rupture of thin floating sheets made of a brittle material under a wave-induced mechanical forcing. We show that the rupture occurs where the curvature is maximum and the break-up threshold strongly dep…
View article: Elastic Wave Packets Crossing a Space-Time Interface
Elastic Wave Packets Crossing a Space-Time Interface Open
The interaction between waves and evolving media challenges traditional conservation laws. We experimentally investigate the behavior of elastic wave packets crossing a moving interface that separates two media with distinct propagation pr…
View article: Measuring the local mechanical properties of a floating elastic sheet
Measuring the local mechanical properties of a floating elastic sheet Open
Polar regions are covered by sea ice, which can be seen as a thin solid elastic sheet with heterogeneous mechanical properties. The dynamics of deformation of a floating solid sheet are primarly governed by gravity, water density, and the …
View article: Viscoelastic dynamics of a soft strip subject to a large deformation
Viscoelastic dynamics of a soft strip subject to a large deformation Open
We follow the propagation of guided elastic waves in a soft strip and study the effect of frequency and prestress on their velocities. The two fundamental in-plane modes are displayed: compression and flexion.
View article: Viscoelastic dynamics of a soft strip subject to a large deformation
Viscoelastic dynamics of a soft strip subject to a large deformation Open
To produce sounds, we adjust the tension of our vocal folds to shape their properties and control the pitch. This efficient mechanism offers inspiration for designing reconfigurable materials and adaptable soft robots. However, understandi…
View article: Guided elastic waves in a highly-stretched soft plate
Guided elastic waves in a highly-stretched soft plate Open
International audience
View article: Guided elastic waves in a highly-stretched soft plate
Guided elastic waves in a highly-stretched soft plate Open
We study the propagation of guided elastic waves in a highly-stretched Ecoflex\c{opyright} plate, a nearly incompressible elastomer. The plate is subjected to a nearly-uniaxial stress with an elongation reaching 120% and we measure in-plan…
View article: Soft elastomers: A playground for guided waves
Soft elastomers: A playground for guided waves Open
Mechanical waves propagating in soft materials play an important role in physiology. They can be natural, such as the cochlear wave in the inner ear of mammalians, or controlled, such as in elastography in the context of medical imaging. I…
View article: Liquid walls and interfaces in arbitrary directions stabilized by vibrations
Liquid walls and interfaces in arbitrary directions stabilized by vibrations Open
Significance On Earth, the surface of a liquid is expected to be horizontal due to gravity. However, new equilibria with an arbitrary direction can be created by shaking the bath hard enough at a few tens of Hertz. The inertial forces resu…
View article: Liquid walls and interfaces in arbitrary directions stabilized by\n vibrations
Liquid walls and interfaces in arbitrary directions stabilized by\n vibrations Open
Gravity shapes liquids and play a crucial role in their internal balance.\nCreating new equilibrium configurations irrespective of the presence of a\ngravitational field is challenging with applications on earth as well as in\nzero-gravity…
View article: Time localization of energy in disordered time-modulated systems
Time localization of energy in disordered time-modulated systems Open
Wave localization induced by spatial disorder is ubiquitous in physics. Here, we study the temporal analog of such phenomenon on water waves. Our time disordered media consists in a collection of temporal interfaces achieved through electr…
View article: Dirac cones and chiral selection of elastic waves in a soft strip
Dirac cones and chiral selection of elastic waves in a soft strip Open
Significance We monitor the propagation of in-plane elastic waves in an incompressible thin strip and observe a Dirac cone in a soft material. Additional remarkable wave features such as negative phase velocities, pseudo-zero group velocit…
View article: Experimental teaching — A tribute to Yves Couder by the example: stroboscopy and fluorescence lifetime with a fan
Experimental teaching — A tribute to Yves Couder by the example: stroboscopy and fluorescence lifetime with a fan Open
Yves Couder created “PhyExp” at Paris Diderot University in 80s. This undergraduate course was meant to introduce experimental physics to students through projects. This approach proved fruitful both for students and teachers and has been …
View article: Dirac cones and chiral selection of elastic waves in a soft strip
Dirac cones and chiral selection of elastic waves in a soft strip Open
Data set obtained after Digital image correlation.
View article: Dirac cones and chiral selection of elastic waves in a soft strip
Dirac cones and chiral selection of elastic waves in a soft strip Open
Data set obtained after Digital image correlation.
View article: Artificial resonant crystals for hydroelastic waves
Artificial resonant crystals for hydroelastic waves Open
Engineering the propagation of water waves is a crucial challenge for potential applications at oceanic scale. Despite their apparent complexity, they do not fundamentally differ from any other kind of physical wave. Similar to recent appr…
View article: Probing Floquet modes in a time periodic system with time defects using Faraday instability
Probing Floquet modes in a time periodic system with time defects using Faraday instability Open
Time crystals are systems whose properties are periodically modulated in time. Among these, Floquet time crystals exhibit momentum gaps in their band structures, analogous to energy gaps in spatial crystals. Recently, time defects with a -…
View article: Dirac cones and chiral waves in soft matter
Dirac cones and chiral waves in soft matter Open
We study the propagation of in-plane elastic waves in a soft thin strip; a specific geometrical and mechanical hybrid framework which we expect to exhibit Dirac-like cone. We separate the low frequencies guided modes (typically 100~Hz for …
View article: How capillarity affects the propagation of elastic waves in soft gels
How capillarity affects the propagation of elastic waves in soft gels Open
Elastic waves propagating at the interface of soft solids can be altered by the presence of external forces such as capillarity and gravity. We measure the dispersion relation of waves at the free surface of agarose gels with great accurac…
View article: Formation of vase-shaped drops
Formation of vase-shaped drops Open
International audience
View article: In plane guided modes in soft strips
In plane guided modes in soft strips Open
International audience