Matches in SemOpenAlex for { <https://semopenalex.org/work/W2249252561> ?p ?o ?g. }
Showing items 1 to 85 of
85
with 100 items per page.
- W2249252561 abstract "Contrary to the case of simple fluids, a finite stress is required to initiate the flow of amorphous solids, a broad class of materials ranging from bulk metallic glasses to dense emulsions. The objective of this thesis is to model the flow of these materials in a general framework, with an emphasis on heterogeneities.In a first approach, using the liquid regime as a starting point, I have investigated to what extent inhomogeneities can be accommodated in the framework of the mode-coupling theory of rheology. A generic equation for the evolution of density inhomogeneities has been derived.At low temperatures, the flow is indeed quite heterogeneous: it consists of periods of elastic deformation interspersed with swift localised rearrangements of particles, that induce long-range elastic deformations and can thereby spark off new rearrangements. In a second approach, a model rooted in this scenario has been refined so as to reflect the interplay between the external drive and the localised rearrangements, which is at the origin of the flow curve of athermal solids. The latter has been reproduced satisfactorily.Turning to spatial correlations in the flow, we have shown that there exists no universal scaling for these correlations in elastoplastic models, although a broad class of correlation lengths scale with dot{gamma}^{nicefrac{-1}{d}} in the shear-dominated regime in d dimensions.Besides, shear localisation has been observed in diverse variants of the model, whenever blocks are durably weakened following a plastic event.Finally, we have directly compared model predictions to experimental results on the flow of dense emulsions through microchannels and to athermal molecular dynamics simulations. Spurred on by the observation of some discrepancies, we have developed and implemented a more flexible code, based on a simplified Finite Element routine, which notably provides a better account of structural disorder and inertial effects." @default.
- W2249252561 created "2016-06-24" @default.
- W2249252561 creator A5011533045 @default.
- W2249252561 date "2014-10-08" @default.
- W2249252561 modified "2023-10-16" @default.
- W2249252561 title "The Flow of Amorphous Solids: Elastoplastic Models and Mode-Coupling Approach" @default.
- W2249252561 hasPublicationYear "2014" @default.
- W2249252561 type Work @default.
- W2249252561 sameAs 2249252561 @default.
- W2249252561 citedByCount "0" @default.
- W2249252561 crossrefType "dissertation" @default.
- W2249252561 hasAuthorship W2249252561A5011533045 @default.
- W2249252561 hasConcept C11135259 @default.
- W2249252561 hasConcept C121332964 @default.
- W2249252561 hasConcept C121864883 @default.
- W2249252561 hasConcept C131584629 @default.
- W2249252561 hasConcept C135768490 @default.
- W2249252561 hasConcept C153294291 @default.
- W2249252561 hasConcept C159985019 @default.
- W2249252561 hasConcept C178790620 @default.
- W2249252561 hasConcept C185592680 @default.
- W2249252561 hasConcept C191897082 @default.
- W2249252561 hasConcept C192562407 @default.
- W2249252561 hasConcept C200990466 @default.
- W2249252561 hasConcept C204366326 @default.
- W2249252561 hasConcept C2524010 @default.
- W2249252561 hasConcept C33923547 @default.
- W2249252561 hasConcept C38349280 @default.
- W2249252561 hasConcept C56052488 @default.
- W2249252561 hasConcept C57879066 @default.
- W2249252561 hasConcept C74650414 @default.
- W2249252561 hasConcept C79186407 @default.
- W2249252561 hasConcept C96035792 @default.
- W2249252561 hasConcept C97355855 @default.
- W2249252561 hasConcept C99844830 @default.
- W2249252561 hasConceptScore W2249252561C11135259 @default.
- W2249252561 hasConceptScore W2249252561C121332964 @default.
- W2249252561 hasConceptScore W2249252561C121864883 @default.
- W2249252561 hasConceptScore W2249252561C131584629 @default.
- W2249252561 hasConceptScore W2249252561C135768490 @default.
- W2249252561 hasConceptScore W2249252561C153294291 @default.
- W2249252561 hasConceptScore W2249252561C159985019 @default.
- W2249252561 hasConceptScore W2249252561C178790620 @default.
- W2249252561 hasConceptScore W2249252561C185592680 @default.
- W2249252561 hasConceptScore W2249252561C191897082 @default.
- W2249252561 hasConceptScore W2249252561C192562407 @default.
- W2249252561 hasConceptScore W2249252561C200990466 @default.
- W2249252561 hasConceptScore W2249252561C204366326 @default.
- W2249252561 hasConceptScore W2249252561C2524010 @default.
- W2249252561 hasConceptScore W2249252561C33923547 @default.
- W2249252561 hasConceptScore W2249252561C38349280 @default.
- W2249252561 hasConceptScore W2249252561C56052488 @default.
- W2249252561 hasConceptScore W2249252561C57879066 @default.
- W2249252561 hasConceptScore W2249252561C74650414 @default.
- W2249252561 hasConceptScore W2249252561C79186407 @default.
- W2249252561 hasConceptScore W2249252561C96035792 @default.
- W2249252561 hasConceptScore W2249252561C97355855 @default.
- W2249252561 hasConceptScore W2249252561C99844830 @default.
- W2249252561 hasLocation W22492525611 @default.
- W2249252561 hasOpenAccess W2249252561 @default.
- W2249252561 hasPrimaryLocation W22492525611 @default.
- W2249252561 hasRelatedWork W1966040932 @default.
- W2249252561 hasRelatedWork W2024370747 @default.
- W2249252561 hasRelatedWork W2026913143 @default.
- W2249252561 hasRelatedWork W2047234223 @default.
- W2249252561 hasRelatedWork W2049856230 @default.
- W2249252561 hasRelatedWork W2067269467 @default.
- W2249252561 hasRelatedWork W2077430347 @default.
- W2249252561 hasRelatedWork W2078936201 @default.
- W2249252561 hasRelatedWork W2088447333 @default.
- W2249252561 hasRelatedWork W2108880587 @default.
- W2249252561 hasRelatedWork W2591910050 @default.
- W2249252561 hasRelatedWork W2751334896 @default.
- W2249252561 hasRelatedWork W3087585655 @default.
- W2249252561 hasRelatedWork W3099905668 @default.
- W2249252561 hasRelatedWork W3102866309 @default.
- W2249252561 hasRelatedWork W3105560611 @default.
- W2249252561 hasRelatedWork W3199623630 @default.
- W2249252561 hasRelatedWork W3213905648 @default.
- W2249252561 hasRelatedWork W57552212 @default.
- W2249252561 hasRelatedWork W86053526 @default.
- W2249252561 isParatext "false" @default.
- W2249252561 isRetracted "false" @default.
- W2249252561 magId "2249252561" @default.
- W2249252561 workType "dissertation" @default.