Alexandre Delory
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View article: Wave propagation in a model artery
Wave propagation in a model artery Open
Fluid filled pipes are ubiquitous in both man-made constructions and living organisms. In the latter, biological pipes, such as arteries, have unique properties as their walls are made of soft, incompressible, highly deformable materials. …
View article: Exploring the limits to quantitative elastography: supersonic shear imaging in stretched soft strips
Exploring the limits to quantitative elastography: supersonic shear imaging in stretched soft strips Open
Objective. Shear wave elastography has enriched ultrasound medical imaging with quantitative tissue stiffness measurements. We aim to explore the limitations that persist related to viscoelasticity, guiding geometry or static deformation. …
View article: Droplet on a Sugar fiber
Droplet on a Sugar fiber Open
This data set corresponds to the paper submitted to Physical Review Fluids. The data set include a tab delimited file containing the data from Fig. 3, 4a and 4b. More information will be provided as soon as the paper is accepted.
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: 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: Supersonic shear wave imaging in stretched soft strips: modeling for quantitative elastography
Supersonic shear wave imaging in stretched soft strips: modeling for quantitative elastography Open
Objective - Shear wave elastography has enriched ultrasound medical imaging with quantitative measurements of tissue stiffness. However, this method still suffers from some limitations due to viscoelasticity, guiding geometry or static def…
View article: Guided elastic waves in soft media
Guided elastic waves in soft media Open
This PhD thesis explores guided elastic waves in soft materials, particularly synthetic elastomers like Ecoflex that mimic human tissue properties. It aims to understand the impact of prestress on guided waves and their broader implication…
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
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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…