Grandas Tavera, Carlos Eduardo ; Nitsch, Antonia ; Machaček, Jan (2024)
A 1D Hypoplastic constitutive model for expansive soils.
In: Acta Geotechnica, 2022, 17 (10)
doi: 10.26083/tuprints-00026586
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
This paper presents a simple hypoplastic constitutive model that describes the essential features of the material behaviour of partially saturated clayey soils observed in oedometric compression tests. The model is formulated in terms of net stress and degree of saturation. The total strain rate is decomposed into a portion related to the changes in saturation and a portion for the evolution of net stress. However, no distinction is made between plastic and elastic strains. With this strain rate decomposition, the maximum swelling strain/stress are obtained by simulating wetting processes under constant stress/strain conditions. In addition to the void ratio, the model includes two scalar variables to track the loading history (preloading). The calibration of the model constants using common laboratory tests is discussed. Confined and unconfined swelling tests under oedometric conditions with subsequent loading and unloading phases carried out on three different materials were satisfactorily simulated by the model. Its promising results call for an extension to a 3D formulation.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Grandas Tavera, Carlos Eduardo ; Nitsch, Antonia ; Machaček, Jan |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | A 1D Hypoplastic constitutive model for expansive soils |
| Sprache: | Englisch |
| Publikationsjahr: | 26 September 2024 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2022 |
| Ort der Erstveröffentlichung: | Berlin ; Heidelberg |
| Verlag: | Springer |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Acta Geotechnica |
| Jahrgang/Volume einer Zeitschrift: | 17 |
| (Heft-)Nummer: | 10 |
| Kollation: | 19 Seiten |
| DOI: | 10.26083/tuprints-00026586 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/26586 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichungsservice |
| Kurzbeschreibung (Abstract): | This paper presents a simple hypoplastic constitutive model that describes the essential features of the material behaviour of partially saturated clayey soils observed in oedometric compression tests. The model is formulated in terms of net stress and degree of saturation. The total strain rate is decomposed into a portion related to the changes in saturation and a portion for the evolution of net stress. However, no distinction is made between plastic and elastic strains. With this strain rate decomposition, the maximum swelling strain/stress are obtained by simulating wetting processes under constant stress/strain conditions. In addition to the void ratio, the model includes two scalar variables to track the loading history (preloading). The calibration of the model constants using common laboratory tests is discussed. Confined and unconfined swelling tests under oedometric conditions with subsequent loading and unloading phases carried out on three different materials were satisfactorily simulated by the model. Its promising results call for an extension to a 3D formulation. |
| Freie Schlagworte: | Constitutive model, Expansive soils, Hypoplasticity, Partial saturation, Swelling |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-265866 |
| Zusätzliche Informationen: | Open Access funding enabled and organized by Projekt DEAL |
| 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 12:29 |
| Letzte Änderung: | 27 Sep 2024 06:12 |
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| Suche nach Titel in: | TUfind oder in Google |
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- A 1D Hypoplastic constitutive model for expansive soils. (deposited 26 Sep 2024 12:29) [Gegenwärtig angezeigt]
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