Plane Strain Failure for Different Constitutive Models

Gertraud Medicus; Manuel Bode; Franz Tschuchnigg; Barbara Schneider-Muntau

doi:10.1007/978-3-030-64514-4_49

Plane Strain Failure for Different Constitutive Models

Gertraud Medicus, Manuel Bode, Franz Tschuchnigg, Barbara Schneider-Muntau

Institut für Bodenmechanik, Grundbau und Numerische Geotechnik (2170)

Publikation: Beitrag in Buch/Bericht/Konferenzband › Beitrag in einem Konferenzband › Begutachtung

Abstract

In geotechnical engineering, boundary value problems are often
idealized under plane strain conditions. It is therefore of particular interest to
investigate constitutive models with respect to plane strain failure. In this contribution, previous studies on elastoplastiticity are linked to the here presented studies on hypoplasticity and barodesy. The parameters of the models are chosen in such way that strength predictions coincide for drained axisymmetric triaxial conditions. The plane strain strength predictions differ due to different failure surfaces and due to different deviatoric directions of stress paths under plane strain conditions. The influence of the initial stress state on peak strength is discussed. As barodesy and hypoplasticity are formulated within the asymptotic state concept, critical stress states are independent of the initial stress state. The results of element test observations are related to a strength reduction analysis.

Originalsprache	englisch
Titel	Challenges and Innovations in Geomechanics - Proceedings of the 16th International Conference of IACMAG - Volume 1
Untertitel	Proceedings of the 16th International Conference of IACMAG
Redakteure/-innen	Marco Barla, Alice Di Donna, Donatella Sterpi
Herausgeber (Verlag)	Springer
Seiten	498-506
Seitenumfang	9
Band	01
ISBN (elektronisch)	978-3-030-64514-4
ISBN (Print)	978-3-030-64513-7
DOIs	https://doi.org/10.1007/978-3-030-64514-4_49
Publikationsstatus	Veröffentlicht - 1 Jan. 2021

Publikationsreihe

Name	Lecture Notes in Civil Engineering
Band	125
ISSN (Print)	2366-2557
ISSN (elektronisch)	2366-2565

ASJC Scopus subject areas

Tief- und Ingenieurbau

Zugriff auf Dokument

10.1007/978-3-030-64514-4_49

Andere Dateien und Links

http://www.scopus.com/inward/record.url?scp=85101507581&partnerID=8YFLogxK

Dieses zitieren

Medicus, G., Bode, M., Tschuchnigg, F., & Schneider-Muntau, B. (2021). Plane Strain Failure for Different Constitutive Models. in M. Barla, A. Di Donna, & D. Sterpi (Hrsg.), Challenges and Innovations in Geomechanics - Proceedings of the 16th International Conference of IACMAG - Volume 1: Proceedings of the 16th International Conference of IACMAG (Band 01, S. 498-506). (Lecture Notes in Civil Engineering; Band 125). Springer. https://doi.org/10.1007/978-3-030-64514-4_49

Plane Strain Failure for Different Constitutive Models. / Medicus, Gertraud; Bode, Manuel; Tschuchnigg, Franz et al.
Challenges and Innovations in Geomechanics - Proceedings of the 16th International Conference of IACMAG - Volume 1: Proceedings of the 16th International Conference of IACMAG. Hrsg. / Marco Barla; Alice Di Donna; Donatella Sterpi. Band 01 Springer, 2021. S. 498-506 (Lecture Notes in Civil Engineering; Band 125).

Publikation: Beitrag in Buch/Bericht/Konferenzband › Beitrag in einem Konferenzband › Begutachtung

Medicus, G, Bode, M, Tschuchnigg, F & Schneider-Muntau, B 2021, Plane Strain Failure for Different Constitutive Models. in M Barla, A Di Donna & D Sterpi (Hrsg.), Challenges and Innovations in Geomechanics - Proceedings of the 16th International Conference of IACMAG - Volume 1: Proceedings of the 16th International Conference of IACMAG. Bd. 01, Lecture Notes in Civil Engineering, Bd. 125, Springer, S. 498-506. https://doi.org/10.1007/978-3-030-64514-4_49

Medicus G, Bode M, Tschuchnigg F, Schneider-Muntau B. Plane Strain Failure for Different Constitutive Models. in Barla M, Di Donna A, Sterpi D, Hrsg., Challenges and Innovations in Geomechanics - Proceedings of the 16th International Conference of IACMAG - Volume 1: Proceedings of the 16th International Conference of IACMAG. Band 01. Springer. 2021. S. 498-506. (Lecture Notes in Civil Engineering). doi: 10.1007/978-3-030-64514-4_49

Medicus, Gertraud ; Bode, Manuel ; Tschuchnigg, Franz et al. / Plane Strain Failure for Different Constitutive Models. Challenges and Innovations in Geomechanics - Proceedings of the 16th International Conference of IACMAG - Volume 1: Proceedings of the 16th International Conference of IACMAG. Hrsg. / Marco Barla ; Alice Di Donna ; Donatella Sterpi. Band 01 Springer, 2021. S. 498-506 (Lecture Notes in Civil Engineering).

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AB - In geotechnical engineering, boundary value problems are oftenidealized under plane strain conditions. It is therefore of particular interest toinvestigate constitutive models with respect to plane strain failure. In this contribution, previous studies on elastoplastiticity are linked to the here presented studies on hypoplasticity and barodesy. The parameters of the models are chosen in such way that strength predictions coincide for drained axisymmetric triaxial conditions. The plane strain strength predictions differ due to different failure surfaces and due to different deviatoric directions of stress paths under plane strain conditions. The influence of the initial stress state on peak strength is discussed. As barodesy and hypoplasticity are formulated within the asymptotic state concept, critical stress states are independent of the initial stress state. The results of element test observations are related to a strength reduction analysis.

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