A General Framework to Simulate Soil–Structure Interface Behaviour Using Advanced Constitutive Models
The importance of using sophisticated interface models to obtain realistic numerical solutions of soil–structure interaction (SSI) problems has been recognised in recent decades. With this aim, various advanced interface models have been developed, which assume that the same advanced constitutive mo...
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MDPI AG
2025-02-01
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| author | Michael Niebler Stylianos Chrisopoulos Roberto Cudmani Daniel Rebstock |
| author_facet | Michael Niebler Stylianos Chrisopoulos Roberto Cudmani Daniel Rebstock |
| author_sort | Michael Niebler |
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| description | The importance of using sophisticated interface models to obtain realistic numerical solutions of soil–structure interaction (SSI) problems has been recognised in recent decades. With this aim, various advanced interface models have been developed, which assume that the same advanced constitutive model can describe the soil behaviour inside and outside the shear zone. These models fail to adequately address the experimentally observed stick–slip transition, assuming permanent sticking between the soil and structure. Furthermore, the influence of interface roughness requires model parameter adjustments, e.g., in the critical state of the soil, which are questionable from a physical point of view. To overcome these shortcomings, we propose a general relationship to describe the evolution of the shear strain in the shear zone as a function of the surface roughness, the density, and the normal stress. This relationship, which assumes a stick–slip transition at the interface, can be combined with an advanced constitutive model to describe soil–structure interface behaviour using the same set of model parameters as for the surrounding soil. Depending on the surface roughness of the interface, this transition leads to a localisation within the soil in the shear zone (for rough surfaces) or at the contact surface (for smooth surfaces). The proposed model was validated using interface shear tests from the literature on dry granular soils. A hypoplastic constitutive model was used in the simulations. The comparison of experimental and calculated results demonstrates the ability of the proposed model to realistically reproduce shear stress and relative displacements, including the stick–slip transition observed in the experiments. This instils confidence in the model’s reliability and accuracy, thus providing a reliable numerical tool for SSI analyses. |
| format | Article |
| id | doaj-art-d50efea686fd4e178d059838006d7bd1 |
| institution | Kabale University |
| issn | 2673-3951 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
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| spelling | doaj-art-d50efea686fd4e178d059838006d7bd12025-08-20T03:43:37ZengMDPI AGModelling2673-39512025-02-01611110.3390/modelling6010011A General Framework to Simulate Soil–Structure Interface Behaviour Using Advanced Constitutive ModelsMichael Niebler0Stylianos Chrisopoulos1Roberto Cudmani2Daniel Rebstock3Chair of Soil Mechanics and Foundation Engineering, Rock Mechanics and Tunneling, Technical University of Munich, 80333 München, GermanyChair of Soil Mechanics and Foundation Engineering, Rock Mechanics and Tunneling, Technical University of Munich, 80333 München, GermanyChair of Soil Mechanics and Foundation Engineering, Rock Mechanics and Tunneling, Technical University of Munich, 80333 München, GermanyChair of Soil Mechanics and Foundation Engineering, Rock Mechanics and Tunneling, Technical University of Munich, 80333 München, GermanyThe importance of using sophisticated interface models to obtain realistic numerical solutions of soil–structure interaction (SSI) problems has been recognised in recent decades. With this aim, various advanced interface models have been developed, which assume that the same advanced constitutive model can describe the soil behaviour inside and outside the shear zone. These models fail to adequately address the experimentally observed stick–slip transition, assuming permanent sticking between the soil and structure. Furthermore, the influence of interface roughness requires model parameter adjustments, e.g., in the critical state of the soil, which are questionable from a physical point of view. To overcome these shortcomings, we propose a general relationship to describe the evolution of the shear strain in the shear zone as a function of the surface roughness, the density, and the normal stress. This relationship, which assumes a stick–slip transition at the interface, can be combined with an advanced constitutive model to describe soil–structure interface behaviour using the same set of model parameters as for the surrounding soil. Depending on the surface roughness of the interface, this transition leads to a localisation within the soil in the shear zone (for rough surfaces) or at the contact surface (for smooth surfaces). The proposed model was validated using interface shear tests from the literature on dry granular soils. A hypoplastic constitutive model was used in the simulations. The comparison of experimental and calculated results demonstrates the ability of the proposed model to realistically reproduce shear stress and relative displacements, including the stick–slip transition observed in the experiments. This instils confidence in the model’s reliability and accuracy, thus providing a reliable numerical tool for SSI analyses.https://www.mdpi.com/2673-3951/6/1/11finite element modellinggranular materialsinterfacessoil–structure interaction (SSI) |
| spellingShingle | Michael Niebler Stylianos Chrisopoulos Roberto Cudmani Daniel Rebstock A General Framework to Simulate Soil–Structure Interface Behaviour Using Advanced Constitutive Models Modelling finite element modelling granular materials interfaces soil–structure interaction (SSI) |
| title | A General Framework to Simulate Soil–Structure Interface Behaviour Using Advanced Constitutive Models |
| title_full | A General Framework to Simulate Soil–Structure Interface Behaviour Using Advanced Constitutive Models |
| title_fullStr | A General Framework to Simulate Soil–Structure Interface Behaviour Using Advanced Constitutive Models |
| title_full_unstemmed | A General Framework to Simulate Soil–Structure Interface Behaviour Using Advanced Constitutive Models |
| title_short | A General Framework to Simulate Soil–Structure Interface Behaviour Using Advanced Constitutive Models |
| title_sort | general framework to simulate soil structure interface behaviour using advanced constitutive models |
| topic | finite element modelling granular materials interfaces soil–structure interaction (SSI) |
| url | https://www.mdpi.com/2673-3951/6/1/11 |
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