Numerical Simulation of CPT with the Clay and Sand Model (CASM) Including Effects of Bonding

Helmut F. Schweiger*, Laurin Hauser

*Korrespondierende/r Autor/-in für diese Arbeit

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandBegutachtung

Abstract

The simulation of cone penetration tests (CPT) poses still a challenge to numerical modelling because large deformations and large displacements have to be considered. In this work the Particle Finite Element Method code G-PFEM, which employs an updated Lagrangian description, is utilized. The use of linear elements in combination with a stabilized mixed formulation and frequent remeshing of critical regions ensures computational efficiency. The well-known Clay and Sand Model (CASM), which is a model based on critical state soil mechanics principles, has been implemented in G-PFEM and extended to account for effects of bonding and destructuration. Cone penetration in a low permeable silt under undrained conditions has been simulated and the influence of the degree of bonding and the rate of debonding on calculated cone resistance is evaluated. In an additional study the influence of the shape of the yield surface, which can be controlled by two input parameters in the model, on cone resistance is investigated.

Originalspracheenglisch
TitelChallenges and Innovations in Geomechanics - Proceedings of the 16th International Conference of IACMAG - Volume 1
Redakteure/-innenMarco Barla, Alice Di Donna, Donatella Sterpi
Herausgeber (Verlag)Springer Science and Business Media Deutschland GmbH
Seiten161-170
Seitenumfang10
ISBN (Print)9783030645137
DOIs
PublikationsstatusVeröffentlicht - 2021
Veranstaltung16th International Conference on Computer Methods and Advances in Geomechanics: IACMAG 2021 - Turin, Italien
Dauer: 5 Mai 20218 Mai 2021

Publikationsreihe

NameLecture Notes in Civil Engineering
Band125
ISSN (Print)2366-2557
ISSN (elektronisch)2366-2565

Konferenz

Konferenz16th International Conference on Computer Methods and Advances in Geomechanics
KurztitelIACMAG 2021
Land/GebietItalien
OrtTurin
Zeitraum5/05/218/05/21

ASJC Scopus subject areas

  • Tief- und Ingenieurbau

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