Fluid-solid transition in unsteady shearing flows
This paper focuses on the mechanical behaviour of granular systems under shearing, unsteady conditions. The results of numerical simulations of time evolving, homogeneous, shear flows of an assembly of frictional spheres, under constant volume conditions are illustrated. Simulations have been perfor...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2017-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://doi.org/10.1051/epjconf/201714003058 |
| _version_ | 1819299407265267712 |
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| author | Vescovi Dalila Berzi Diego di Prisco Claudio |
| author_facet | Vescovi Dalila Berzi Diego di Prisco Claudio |
| author_sort | Vescovi Dalila |
| collection | DOAJ |
| description | This paper focuses on the mechanical behaviour of granular systems under shearing, unsteady conditions. The results of numerical simulations of time evolving, homogeneous, shear flows of an assembly of frictional spheres, under constant volume conditions are illustrated. Simulations have been performed considering three volume fractions corresponding to fluid, solid and near-to-critical conditions at steady state. The three systems follow very different evolutionary paths, in terms of pressure, coordination number and stress ratio. Fluid-like and solid-like systems exhibit large and small fluctuations, respectively, in those quantities. A critical value of the coordination number seems to govern the transition from fluid to solid. |
| first_indexed | 2024-12-24T05:45:18Z |
| format | Article |
| id | doaj.art-bc8964293b7349cfb91dbe651d47ef0a |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-24T05:45:18Z |
| publishDate | 2017-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-bc8964293b7349cfb91dbe651d47ef0a2022-12-21T17:12:36ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011400305810.1051/epjconf/201714003058epjconf162390Fluid-solid transition in unsteady shearing flowsVescovi Dalila0Berzi Diego1di Prisco Claudio2Department of Civil and Environmental Engineering, Politecnico di MilanoDepartment of Civil and Environmental Engineering, Politecnico di MilanoDepartment of Civil and Environmental Engineering, Politecnico di MilanoThis paper focuses on the mechanical behaviour of granular systems under shearing, unsteady conditions. The results of numerical simulations of time evolving, homogeneous, shear flows of an assembly of frictional spheres, under constant volume conditions are illustrated. Simulations have been performed considering three volume fractions corresponding to fluid, solid and near-to-critical conditions at steady state. The three systems follow very different evolutionary paths, in terms of pressure, coordination number and stress ratio. Fluid-like and solid-like systems exhibit large and small fluctuations, respectively, in those quantities. A critical value of the coordination number seems to govern the transition from fluid to solid.https://doi.org/10.1051/epjconf/201714003058 |
| spellingShingle | Vescovi Dalila Berzi Diego di Prisco Claudio Fluid-solid transition in unsteady shearing flows EPJ Web of Conferences |
| title | Fluid-solid transition in unsteady shearing flows |
| title_full | Fluid-solid transition in unsteady shearing flows |
| title_fullStr | Fluid-solid transition in unsteady shearing flows |
| title_full_unstemmed | Fluid-solid transition in unsteady shearing flows |
| title_short | Fluid-solid transition in unsteady shearing flows |
| title_sort | fluid solid transition in unsteady shearing flows |
| url | https://doi.org/10.1051/epjconf/201714003058 |
| work_keys_str_mv | AT vescovidalila fluidsolidtransitioninunsteadyshearingflows AT berzidiego fluidsolidtransitioninunsteadyshearingflows AT dipriscoclaudio fluidsolidtransitioninunsteadyshearingflows |