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Large particle segregation in two-dimensional sheared granular flows
Publications associées (33)
Deformation twinning mechanism in magnesium at the microscale: strain rate, temperature and orientation effects
The project aims to validate some recent theoretical developments on the deformation twinning nucleation mechanism in HCP metals through small-scale mechanic experiments. To this end, a systematic investigation of the mechanical response of pure magnesium ...
EPFL2022Controlling superconductivity of CeIrIn5 microstructures by substrate selection
Philip Johannes Walter Moll, Maja Deborah Bachmann, Matthias Carsten Putzke, Chunyu Guo, Maarten Ruud van Delft, Joshua Alan Wolfe Straquadine
Superconductor/metal interfaces are usually fabricated in heterostructures that join these dissimilar materials. A conceptually different approach has recently exploited the strain sensitivity of heavy-fermion superconductors, selectively transforming regi ...
AIP Publishing2022Particle-size segregation and rheology coupling in dense granular flows.
Tomás Alfredo Trewhela Palacios
Dense granular flows -debris or pyroclastic flows, avalanches, granular flows in heaps, silos or rotating drums-are ubiquitous to many natural and industrial processes. Their grain composition is often polydisperse, with particles differing in shape, size ...
EPFL2021Evolution of the rate-and-state frictional parameters of carbonate bearing faults at the brittle-ductile transition
Marie Estelle Solange Violay, Mathias Alexandre David Lebihain, Carolina Giorgetti, Francesco Figura
The majority of the seismic events in the Mediterranean region are hosted in carbonate-bearing rocks at depths representative of the semi-brittle regime. Within this regime, a complex interplay between brittle (localized) and ductile (distributed) deformat ...
2021A numerical approach to characterize the viscoelastic behaviour of fibre beds and to evaluate the influence of strain deviations on viscoelastic parameter extraction
Véronique Michaud, Vincent Werlen, Christian Rytka
The development of a robust material model able to accurately describe fibre bed compaction at different strain and strain rates is highly desirable because it is essential for the simulation of many composite manufacturing processes. In this study, we inv ...
2021Frictional behaviour of carbonate bearing faults at brittle-ductile transition
Marie Estelle Solange Violay, Mathias Alexandre David Lebihain, Carolina Giorgetti, Francesco Figura
One of the most alarming recent findings in geo-science is the dramatic rise in the rate of humaninduced earthquakes in the past decade. This is due to the fluid injection or extraction in deep reservoirs for hydrocarbon production, wastewater and CO2 stor ...
2021ACMEG-TVP: A thermoviscoplastic constitutive model for geomaterials
In this paper, a thermoviscoplastic constitutive model for geomaterials is presented. The model is formulated based on two aspects: (i) the nonstationary flow surface theory, which is used to describe the viscous behaviour of geomaterials, and (ii) the the ...
Elsevier2017Laminated connections for structural glass applications under shear loading at different temperatures and strain rates
Alain Nussbaumer, Pieter Christian Louter, Manuel Santarsiero
Connections between structural glass components represent one of the main critical aspects of glass engineering. In the last years, a novel typology of adhesive connections has emerged, known as laminated adhesive connections. Two adhesive materials for la ...
Elsevier2016Mean field modelling of dynamic and post-dynamic recrystallization during hot deformation of Inconel 718 in the absence of δ phase particles
Dynamic and post-dynamic recrystallization kinetics were investigated during hot-working of Inconel 718 as a function of temperature,strain and strain rate in the single phase domain.The post-dynamic evolution was found to be extremely fast and impacting s ...
Elsevier2016Swimming by reciprocal motion at low Reynolds number
Biological microorganisms swim with flagella and cilia that execute nonreciprocal motions for low Reynolds number (Re) propulsion in viscous fluids. This symmetry requirement is a consequence of Purcell's scallop theorem, which complicates the actuation sc ...
Nature Publishing Group2014