Examination on Time-Dependent Soil Models in One-Dimensional Consolidation
This paper reviews the performance of two time-dependent constitutive models in predictions of one-dimensional consolidation. The Soft-Soil Creep model [1] is an example of an elastic-viscoplastic formulation that incorporates a time-dependent state variable to estimate viscoplastic deformation. We...
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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Springer-Verlag
2015
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| Online Access: | http://hdl.handle.net/1721.1/92765 https://orcid.org/0000-0001-5358-4140 https://orcid.org/0000-0002-3408-0358 |
| _version_ | 1826204705780400128 |
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| author | Yuan, Yixing Whittle, Andrew |
| author2 | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Yuan, Yixing Whittle, Andrew |
| author_sort | Yuan, Yixing |
| collection | MIT |
| description | This paper reviews the performance of two time-dependent constitutive models in predictions of one-dimensional consolidation. The Soft-Soil Creep model [1] is an example of an elastic-viscoplastic formulation that incorporates a time-dependent state variable to estimate viscoplastic deformation. We show that the SSC model is equivalent to the isotache formulation proposed by Imai [2], as both are based on a unique relationship between stress, void ratio and the viscoplastic component of void ratio rate. Simulations of 1-D consolidation confirm that both models represent Hypothesis B behavior, where the axial strain at the End of Primary (EOP) consolidation is dependent on the depth of the clay layer. The effects of specimen thickness and the phenomenon of pore pressure increase at the start of consolidation are discussed in detail. Our interpretation highlights the importance of assumptions regarding the initial strain rate on the behavior observed at different scales under a given applied increment of loading. |
| first_indexed | 2024-09-23T12:59:25Z |
| format | Article |
| id | mit-1721.1/92765 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:59:25Z |
| publishDate | 2015 |
| publisher | Springer-Verlag |
| record_format | dspace |
| spelling | mit-1721.1/927652022-09-28T11:19:29Z Examination on Time-Dependent Soil Models in One-Dimensional Consolidation Yuan, Yixing Whittle, Andrew Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Whittle, Andrew Yuan, Yixing Whittle, Andrew This paper reviews the performance of two time-dependent constitutive models in predictions of one-dimensional consolidation. The Soft-Soil Creep model [1] is an example of an elastic-viscoplastic formulation that incorporates a time-dependent state variable to estimate viscoplastic deformation. We show that the SSC model is equivalent to the isotache formulation proposed by Imai [2], as both are based on a unique relationship between stress, void ratio and the viscoplastic component of void ratio rate. Simulations of 1-D consolidation confirm that both models represent Hypothesis B behavior, where the axial strain at the End of Primary (EOP) consolidation is dependent on the depth of the clay layer. The effects of specimen thickness and the phenomenon of pore pressure increase at the start of consolidation are discussed in detail. Our interpretation highlights the importance of assumptions regarding the initial strain rate on the behavior observed at different scales under a given applied increment of loading. 2015-01-09T18:01:54Z 2015-01-09T18:01:54Z 2013 Article http://purl.org/eprint/type/BookItem 978-3-642-32813-8 978-3-642-32814-5 1866-8755 1866-8763 http://hdl.handle.net/1721.1/92765 Yuan, Yixing, and Andrew J. Whittle. “Examination on Time-Dependent Soil Models in One-Dimensional Consolidation.” Springer Series in Geomechanics and Geoengineering (2013): 159–166. https://orcid.org/0000-0001-5358-4140 https://orcid.org/0000-0002-3408-0358 en_US http://dx.doi.org/10.1007/978-3-642-32814-5_18 Constitutive Modeling of Geomaterials Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Springer-Verlag Anne Graham |
| spellingShingle | Yuan, Yixing Whittle, Andrew Examination on Time-Dependent Soil Models in One-Dimensional Consolidation |
| title | Examination on Time-Dependent Soil Models in One-Dimensional Consolidation |
| title_full | Examination on Time-Dependent Soil Models in One-Dimensional Consolidation |
| title_fullStr | Examination on Time-Dependent Soil Models in One-Dimensional Consolidation |
| title_full_unstemmed | Examination on Time-Dependent Soil Models in One-Dimensional Consolidation |
| title_short | Examination on Time-Dependent Soil Models in One-Dimensional Consolidation |
| title_sort | examination on time dependent soil models in one dimensional consolidation |
| url | http://hdl.handle.net/1721.1/92765 https://orcid.org/0000-0001-5358-4140 https://orcid.org/0000-0002-3408-0358 |
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