A stress-strain description for saturated sand under undrained cyclic torsional shear loading
A constitutive model to describe the cyclic undrained behavior of saturated sand is presented. The increments in volumetric strain during undrained loading, which are equal to zero, are assumed to consist of increments due to dilatancy and increments due to consolidation/swelling. This assumption en...
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| Autor*in: |
De Silva, L.I.N [verfasserIn] |
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| Format: |
Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2015 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Soils and foundations - Tokyo : Soc., 1963, (2015) |
|---|---|
| Übergeordnetes Werk: |
year:2015 |
| Links: |
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OLC1966672209 |
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| 520 | |a A constitutive model to describe the cyclic undrained behavior of saturated sand is presented. The increments in volumetric strain during undrained loading, which are equal to zero, are assumed to consist of increments due to dilatancy and increments due to consolidation/swelling. This assumption enables the proposed model to evaluate increments in volumetric strain due to dilatancy as mirror images of increments in volumetric strain due to consolidation/swelling, thus simulating the generation of excess pore water pressure (i.e., reduction in mean effective principal stress) during undrained cyclic shear loading. Based on the results of drained tests, the increments in volumetric strain due to consolidation/swelling are evaluated by assuming that the quasi-elastic bulk modulus can be expressed as a unique function of the mean effective principal stress. On the other hand, in evaluating the increments in volumetric strain due to dilatancy, a normalized stress–plastic shear strain relationship is employed in combination with a novel empirical stress–dilatancy relationship derived for torsional shear loading. The proposed stress–dilatancy relationship accounts for the effects of over-consolidation during cyclic loading. Numerical simulations show that the proposed model can satisfactorily simulate the generation of excess pore water pressure and the stress–strain relationship of saturated Toyoura sand specimens subjected to undrained cyclic torsional shear loading. It is found that the liquefaction resistance of loose Toyoura sand specimens can be accurately predicted by the model, while the liquefaction resistance of dense Toyoura sand specimens may be slightly underestimated. (i.e., the liquefaction potential is higher). Yet, the model predictions are conservative. | ||
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PQ20160617 (DE-627)OLC1966672209 (DE-599)GBVOLC1966672209 (PRQ)canterbury_dspace_oai_ir_canterbury_ac_nz_10092_109500 (KEY)0061592720150000000000000000stressstraindescriptionforsaturatedsandunderundrai DE-627 ger DE-627 rakwb eng 690 ZDB De Silva, L.I.N verfasserin aut A stress-strain description for saturated sand under undrained cyclic torsional shear loading 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier A constitutive model to describe the cyclic undrained behavior of saturated sand is presented. The increments in volumetric strain during undrained loading, which are equal to zero, are assumed to consist of increments due to dilatancy and increments due to consolidation/swelling. This assumption enables the proposed model to evaluate increments in volumetric strain due to dilatancy as mirror images of increments in volumetric strain due to consolidation/swelling, thus simulating the generation of excess pore water pressure (i.e., reduction in mean effective principal stress) during undrained cyclic shear loading. Based on the results of drained tests, the increments in volumetric strain due to consolidation/swelling are evaluated by assuming that the quasi-elastic bulk modulus can be expressed as a unique function of the mean effective principal stress. On the other hand, in evaluating the increments in volumetric strain due to dilatancy, a normalized stress–plastic shear strain relationship is employed in combination with a novel empirical stress–dilatancy relationship derived for torsional shear loading. The proposed stress–dilatancy relationship accounts for the effects of over-consolidation during cyclic loading. Numerical simulations show that the proposed model can satisfactorily simulate the generation of excess pore water pressure and the stress–strain relationship of saturated Toyoura sand specimens subjected to undrained cyclic torsional shear loading. It is found that the liquefaction resistance of loose Toyoura sand specimens can be accurately predicted by the model, while the liquefaction resistance of dense Toyoura sand specimens may be slightly underestimated. (i.e., the liquefaction potential is higher). Yet, the model predictions are conservative. 05 - Environmental Sciences Field of Research 0503 - Soil Sciences Constitutive model Sand Over-consolidation Stress–dilatancy relationship Soil Physics Liquefaction behavior Koseki, J oth Chiaro, G oth Sato, T oth Enthalten in Soils and foundations Tokyo : Soc., 1963 (2015) (DE-627)129429155 (DE-600)192172-1 (DE-576)014802090 0038-0806 nnns year:2015 http://hdl.handle.net/10092/10950 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-GEO GBV_ILN_63 GBV_ILN_2014 GBV_ILN_2016 GBV_ILN_4046 GBV_ILN_4266 GBV_ILN_4317 GBV_ILN_4700 AR 2015 |
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PQ20160617 (DE-627)OLC1966672209 (DE-599)GBVOLC1966672209 (PRQ)canterbury_dspace_oai_ir_canterbury_ac_nz_10092_109500 (KEY)0061592720150000000000000000stressstraindescriptionforsaturatedsandunderundrai DE-627 ger DE-627 rakwb eng 690 ZDB De Silva, L.I.N verfasserin aut A stress-strain description for saturated sand under undrained cyclic torsional shear loading 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier A constitutive model to describe the cyclic undrained behavior of saturated sand is presented. The increments in volumetric strain during undrained loading, which are equal to zero, are assumed to consist of increments due to dilatancy and increments due to consolidation/swelling. This assumption enables the proposed model to evaluate increments in volumetric strain due to dilatancy as mirror images of increments in volumetric strain due to consolidation/swelling, thus simulating the generation of excess pore water pressure (i.e., reduction in mean effective principal stress) during undrained cyclic shear loading. Based on the results of drained tests, the increments in volumetric strain due to consolidation/swelling are evaluated by assuming that the quasi-elastic bulk modulus can be expressed as a unique function of the mean effective principal stress. On the other hand, in evaluating the increments in volumetric strain due to dilatancy, a normalized stress–plastic shear strain relationship is employed in combination with a novel empirical stress–dilatancy relationship derived for torsional shear loading. The proposed stress–dilatancy relationship accounts for the effects of over-consolidation during cyclic loading. Numerical simulations show that the proposed model can satisfactorily simulate the generation of excess pore water pressure and the stress–strain relationship of saturated Toyoura sand specimens subjected to undrained cyclic torsional shear loading. It is found that the liquefaction resistance of loose Toyoura sand specimens can be accurately predicted by the model, while the liquefaction resistance of dense Toyoura sand specimens may be slightly underestimated. (i.e., the liquefaction potential is higher). Yet, the model predictions are conservative. 05 - Environmental Sciences Field of Research 0503 - Soil Sciences Constitutive model Sand Over-consolidation Stress–dilatancy relationship Soil Physics Liquefaction behavior Koseki, J oth Chiaro, G oth Sato, T oth Enthalten in Soils and foundations Tokyo : Soc., 1963 (2015) (DE-627)129429155 (DE-600)192172-1 (DE-576)014802090 0038-0806 nnns year:2015 http://hdl.handle.net/10092/10950 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-GEO GBV_ILN_63 GBV_ILN_2014 GBV_ILN_2016 GBV_ILN_4046 GBV_ILN_4266 GBV_ILN_4317 GBV_ILN_4700 AR 2015 |
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PQ20160617 (DE-627)OLC1966672209 (DE-599)GBVOLC1966672209 (PRQ)canterbury_dspace_oai_ir_canterbury_ac_nz_10092_109500 (KEY)0061592720150000000000000000stressstraindescriptionforsaturatedsandunderundrai DE-627 ger DE-627 rakwb eng 690 ZDB De Silva, L.I.N verfasserin aut A stress-strain description for saturated sand under undrained cyclic torsional shear loading 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier A constitutive model to describe the cyclic undrained behavior of saturated sand is presented. The increments in volumetric strain during undrained loading, which are equal to zero, are assumed to consist of increments due to dilatancy and increments due to consolidation/swelling. This assumption enables the proposed model to evaluate increments in volumetric strain due to dilatancy as mirror images of increments in volumetric strain due to consolidation/swelling, thus simulating the generation of excess pore water pressure (i.e., reduction in mean effective principal stress) during undrained cyclic shear loading. Based on the results of drained tests, the increments in volumetric strain due to consolidation/swelling are evaluated by assuming that the quasi-elastic bulk modulus can be expressed as a unique function of the mean effective principal stress. On the other hand, in evaluating the increments in volumetric strain due to dilatancy, a normalized stress–plastic shear strain relationship is employed in combination with a novel empirical stress–dilatancy relationship derived for torsional shear loading. The proposed stress–dilatancy relationship accounts for the effects of over-consolidation during cyclic loading. Numerical simulations show that the proposed model can satisfactorily simulate the generation of excess pore water pressure and the stress–strain relationship of saturated Toyoura sand specimens subjected to undrained cyclic torsional shear loading. It is found that the liquefaction resistance of loose Toyoura sand specimens can be accurately predicted by the model, while the liquefaction resistance of dense Toyoura sand specimens may be slightly underestimated. (i.e., the liquefaction potential is higher). Yet, the model predictions are conservative. 05 - Environmental Sciences Field of Research 0503 - Soil Sciences Constitutive model Sand Over-consolidation Stress–dilatancy relationship Soil Physics Liquefaction behavior Koseki, J oth Chiaro, G oth Sato, T oth Enthalten in Soils and foundations Tokyo : Soc., 1963 (2015) (DE-627)129429155 (DE-600)192172-1 (DE-576)014802090 0038-0806 nnns year:2015 http://hdl.handle.net/10092/10950 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-GEO GBV_ILN_63 GBV_ILN_2014 GBV_ILN_2016 GBV_ILN_4046 GBV_ILN_4266 GBV_ILN_4317 GBV_ILN_4700 AR 2015 |
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PQ20160617 (DE-627)OLC1966672209 (DE-599)GBVOLC1966672209 (PRQ)canterbury_dspace_oai_ir_canterbury_ac_nz_10092_109500 (KEY)0061592720150000000000000000stressstraindescriptionforsaturatedsandunderundrai DE-627 ger DE-627 rakwb eng 690 ZDB De Silva, L.I.N verfasserin aut A stress-strain description for saturated sand under undrained cyclic torsional shear loading 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier A constitutive model to describe the cyclic undrained behavior of saturated sand is presented. The increments in volumetric strain during undrained loading, which are equal to zero, are assumed to consist of increments due to dilatancy and increments due to consolidation/swelling. This assumption enables the proposed model to evaluate increments in volumetric strain due to dilatancy as mirror images of increments in volumetric strain due to consolidation/swelling, thus simulating the generation of excess pore water pressure (i.e., reduction in mean effective principal stress) during undrained cyclic shear loading. Based on the results of drained tests, the increments in volumetric strain due to consolidation/swelling are evaluated by assuming that the quasi-elastic bulk modulus can be expressed as a unique function of the mean effective principal stress. On the other hand, in evaluating the increments in volumetric strain due to dilatancy, a normalized stress–plastic shear strain relationship is employed in combination with a novel empirical stress–dilatancy relationship derived for torsional shear loading. The proposed stress–dilatancy relationship accounts for the effects of over-consolidation during cyclic loading. Numerical simulations show that the proposed model can satisfactorily simulate the generation of excess pore water pressure and the stress–strain relationship of saturated Toyoura sand specimens subjected to undrained cyclic torsional shear loading. It is found that the liquefaction resistance of loose Toyoura sand specimens can be accurately predicted by the model, while the liquefaction resistance of dense Toyoura sand specimens may be slightly underestimated. (i.e., the liquefaction potential is higher). Yet, the model predictions are conservative. 05 - Environmental Sciences Field of Research 0503 - Soil Sciences Constitutive model Sand Over-consolidation Stress–dilatancy relationship Soil Physics Liquefaction behavior Koseki, J oth Chiaro, G oth Sato, T oth Enthalten in Soils and foundations Tokyo : Soc., 1963 (2015) (DE-627)129429155 (DE-600)192172-1 (DE-576)014802090 0038-0806 nnns year:2015 http://hdl.handle.net/10092/10950 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-GEO GBV_ILN_63 GBV_ILN_2014 GBV_ILN_2016 GBV_ILN_4046 GBV_ILN_4266 GBV_ILN_4317 GBV_ILN_4700 AR 2015 |
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PQ20160617 (DE-627)OLC1966672209 (DE-599)GBVOLC1966672209 (PRQ)canterbury_dspace_oai_ir_canterbury_ac_nz_10092_109500 (KEY)0061592720150000000000000000stressstraindescriptionforsaturatedsandunderundrai DE-627 ger DE-627 rakwb eng 690 ZDB De Silva, L.I.N verfasserin aut A stress-strain description for saturated sand under undrained cyclic torsional shear loading 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier A constitutive model to describe the cyclic undrained behavior of saturated sand is presented. The increments in volumetric strain during undrained loading, which are equal to zero, are assumed to consist of increments due to dilatancy and increments due to consolidation/swelling. This assumption enables the proposed model to evaluate increments in volumetric strain due to dilatancy as mirror images of increments in volumetric strain due to consolidation/swelling, thus simulating the generation of excess pore water pressure (i.e., reduction in mean effective principal stress) during undrained cyclic shear loading. Based on the results of drained tests, the increments in volumetric strain due to consolidation/swelling are evaluated by assuming that the quasi-elastic bulk modulus can be expressed as a unique function of the mean effective principal stress. On the other hand, in evaluating the increments in volumetric strain due to dilatancy, a normalized stress–plastic shear strain relationship is employed in combination with a novel empirical stress–dilatancy relationship derived for torsional shear loading. The proposed stress–dilatancy relationship accounts for the effects of over-consolidation during cyclic loading. Numerical simulations show that the proposed model can satisfactorily simulate the generation of excess pore water pressure and the stress–strain relationship of saturated Toyoura sand specimens subjected to undrained cyclic torsional shear loading. It is found that the liquefaction resistance of loose Toyoura sand specimens can be accurately predicted by the model, while the liquefaction resistance of dense Toyoura sand specimens may be slightly underestimated. (i.e., the liquefaction potential is higher). Yet, the model predictions are conservative. 05 - Environmental Sciences Field of Research 0503 - Soil Sciences Constitutive model Sand Over-consolidation Stress–dilatancy relationship Soil Physics Liquefaction behavior Koseki, J oth Chiaro, G oth Sato, T oth Enthalten in Soils and foundations Tokyo : Soc., 1963 (2015) (DE-627)129429155 (DE-600)192172-1 (DE-576)014802090 0038-0806 nnns year:2015 http://hdl.handle.net/10092/10950 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC SSG-OLC-GEO GBV_ILN_63 GBV_ILN_2014 GBV_ILN_2016 GBV_ILN_4046 GBV_ILN_4266 GBV_ILN_4317 GBV_ILN_4700 AR 2015 |
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690 ZDB A stress-strain description for saturated sand under undrained cyclic torsional shear loading 05 - Environmental Sciences Field of Research 0503 - Soil Sciences Constitutive model Sand Over-consolidation Stress–dilatancy relationship Soil Physics Liquefaction behavior |
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A stress-strain description for saturated sand under undrained cyclic torsional shear loading |
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A stress-strain description for saturated sand under undrained cyclic torsional shear loading |
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De Silva, L.I.N |
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stress-strain description for saturated sand under undrained cyclic torsional shear loading |
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A stress-strain description for saturated sand under undrained cyclic torsional shear loading |
| abstract |
A constitutive model to describe the cyclic undrained behavior of saturated sand is presented. The increments in volumetric strain during undrained loading, which are equal to zero, are assumed to consist of increments due to dilatancy and increments due to consolidation/swelling. This assumption enables the proposed model to evaluate increments in volumetric strain due to dilatancy as mirror images of increments in volumetric strain due to consolidation/swelling, thus simulating the generation of excess pore water pressure (i.e., reduction in mean effective principal stress) during undrained cyclic shear loading. Based on the results of drained tests, the increments in volumetric strain due to consolidation/swelling are evaluated by assuming that the quasi-elastic bulk modulus can be expressed as a unique function of the mean effective principal stress. On the other hand, in evaluating the increments in volumetric strain due to dilatancy, a normalized stress–plastic shear strain relationship is employed in combination with a novel empirical stress–dilatancy relationship derived for torsional shear loading. The proposed stress–dilatancy relationship accounts for the effects of over-consolidation during cyclic loading. Numerical simulations show that the proposed model can satisfactorily simulate the generation of excess pore water pressure and the stress–strain relationship of saturated Toyoura sand specimens subjected to undrained cyclic torsional shear loading. It is found that the liquefaction resistance of loose Toyoura sand specimens can be accurately predicted by the model, while the liquefaction resistance of dense Toyoura sand specimens may be slightly underestimated. (i.e., the liquefaction potential is higher). Yet, the model predictions are conservative. |
| abstractGer |
A constitutive model to describe the cyclic undrained behavior of saturated sand is presented. The increments in volumetric strain during undrained loading, which are equal to zero, are assumed to consist of increments due to dilatancy and increments due to consolidation/swelling. This assumption enables the proposed model to evaluate increments in volumetric strain due to dilatancy as mirror images of increments in volumetric strain due to consolidation/swelling, thus simulating the generation of excess pore water pressure (i.e., reduction in mean effective principal stress) during undrained cyclic shear loading. Based on the results of drained tests, the increments in volumetric strain due to consolidation/swelling are evaluated by assuming that the quasi-elastic bulk modulus can be expressed as a unique function of the mean effective principal stress. On the other hand, in evaluating the increments in volumetric strain due to dilatancy, a normalized stress–plastic shear strain relationship is employed in combination with a novel empirical stress–dilatancy relationship derived for torsional shear loading. The proposed stress–dilatancy relationship accounts for the effects of over-consolidation during cyclic loading. Numerical simulations show that the proposed model can satisfactorily simulate the generation of excess pore water pressure and the stress–strain relationship of saturated Toyoura sand specimens subjected to undrained cyclic torsional shear loading. It is found that the liquefaction resistance of loose Toyoura sand specimens can be accurately predicted by the model, while the liquefaction resistance of dense Toyoura sand specimens may be slightly underestimated. (i.e., the liquefaction potential is higher). Yet, the model predictions are conservative. |
| abstract_unstemmed |
A constitutive model to describe the cyclic undrained behavior of saturated sand is presented. The increments in volumetric strain during undrained loading, which are equal to zero, are assumed to consist of increments due to dilatancy and increments due to consolidation/swelling. This assumption enables the proposed model to evaluate increments in volumetric strain due to dilatancy as mirror images of increments in volumetric strain due to consolidation/swelling, thus simulating the generation of excess pore water pressure (i.e., reduction in mean effective principal stress) during undrained cyclic shear loading. Based on the results of drained tests, the increments in volumetric strain due to consolidation/swelling are evaluated by assuming that the quasi-elastic bulk modulus can be expressed as a unique function of the mean effective principal stress. On the other hand, in evaluating the increments in volumetric strain due to dilatancy, a normalized stress–plastic shear strain relationship is employed in combination with a novel empirical stress–dilatancy relationship derived for torsional shear loading. The proposed stress–dilatancy relationship accounts for the effects of over-consolidation during cyclic loading. Numerical simulations show that the proposed model can satisfactorily simulate the generation of excess pore water pressure and the stress–strain relationship of saturated Toyoura sand specimens subjected to undrained cyclic torsional shear loading. It is found that the liquefaction resistance of loose Toyoura sand specimens can be accurately predicted by the model, while the liquefaction resistance of dense Toyoura sand specimens may be slightly underestimated. (i.e., the liquefaction potential is higher). Yet, the model predictions are conservative. |
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| title_short |
A stress-strain description for saturated sand under undrained cyclic torsional shear loading |
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