Staubach, Patrick ; Machaček, Jan ; Wichtmann, Torsten (2024)
Novel approach to apply existing constitutive soil models to the modelling of interfaces.
In: International Journal for Numerical and Analytical Methods in Geomechanics, 2022, 46 (7)
doi: 10.26083/tuprints-00026575
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
A novel scheme to apply constitutive (continuum) soil models to the mechanical modelling of soil-structure interfaces is presented. Opposite to existing approaches, all normal stress components of the interface depend directly on the normal stress components of the adjacent continuum. This allows to satisfy boundary conditions not only for the continuum but also for the interface. Interface models based on Hypoplasticity with intergranular strain extension and on Sanisand (version of 2004) are formulated. They are implemented in the framework of a mortar contact discretisation technique in a finite element code, which is available for download. A numerical differentiation scheme is used to secure consistent derivatives of contact forces with respect to displacement. The performance of the proposed interface models is evaluated by comparison with data from (cyclic) simple interface shear tests and an existing (hypoplastic) interface model proposed by Stutz et al. (2016). Subsequently, a large-scale cyclic interface shear test with complex geometry is simulated using the different interface models. It is concluded that only the novel interface formulation allows to appropriately consider the boundary conditions of the large-scale interface shear test in the interface.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Staubach, Patrick ; Machaček, Jan ; Wichtmann, Torsten |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Novel approach to apply existing constitutive soil models to the modelling of interfaces |
| Sprache: | Englisch |
| Publikationsjahr: | 26 September 2024 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2022 |
| Ort der Erstveröffentlichung: | New York, NY [u.a.] |
| Verlag: | Wiley |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | International Journal for Numerical and Analytical Methods in Geomechanics |
| Jahrgang/Volume einer Zeitschrift: | 46 |
| (Heft-)Nummer: | 7 |
| Kollation: | 31 Seiten |
| DOI: | 10.26083/tuprints-00026575 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/26575 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichungsservice |
| Kurzbeschreibung (Abstract): | A novel scheme to apply constitutive (continuum) soil models to the mechanical modelling of soil-structure interfaces is presented. Opposite to existing approaches, all normal stress components of the interface depend directly on the normal stress components of the adjacent continuum. This allows to satisfy boundary conditions not only for the continuum but also for the interface. Interface models based on Hypoplasticity with intergranular strain extension and on Sanisand (version of 2004) are formulated. They are implemented in the framework of a mortar contact discretisation technique in a finite element code, which is available for download. A numerical differentiation scheme is used to secure consistent derivatives of contact forces with respect to displacement. The performance of the proposed interface models is evaluated by comparison with data from (cyclic) simple interface shear tests and an existing (hypoplastic) interface model proposed by Stutz et al. (2016). Subsequently, a large-scale cyclic interface shear test with complex geometry is simulated using the different interface models. It is concluded that only the novel interface formulation allows to appropriately consider the boundary conditions of the large-scale interface shear test in the interface. |
| Freie Schlagworte: | contact mechanics, friction, hypoplasticity, interface modelling, interface shear test, Sanisand |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-265757 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 550 Geowissenschaften 600 Technik, Medizin, angewandte Wissenschaften > 600 Technik |
| Fachbereich(e)/-gebiet(e): | 13 Fachbereich Bau- und Umweltingenieurwissenschaften 13 Fachbereich Bau- und Umweltingenieurwissenschaften > Institut für Geotechnik |
| Hinterlegungsdatum: | 26 Sep 2024 12:40 |
| Letzte Änderung: | 27 Sep 2024 06:04 |
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| Suche nach Titel in: | TUfind oder in Google |
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- Novel approach to apply existing constitutive soil models to the modelling of interfaces. (deposited 26 Sep 2024 12:40) [Gegenwärtig angezeigt]
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