Finite element solution for static and dynamic interactions of cylindrical rigid objects and unsaturated granular soils

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

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  • Monash University
  • Royal Melbourne Institute of Technology University
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OriginalspracheEnglisch
Aufsatznummer113974
FachzeitschriftComputer Methods in Applied Mechanics and Engineering
Jahrgang384
Frühes Online-Datum25 Juni 2021
PublikationsstatusVeröffentlicht - 1 Okt. 2021

Abstract

By employing a mortar-type contact algorithm, we develop a theoretical and numerical framework for elastoplastic interaction of unsaturated granular soils with a rigid cylindrical object in both static and dynamic analyses. The elastoplastic response is modelled with a constitutive model based on the effective stress concept for unsaturated soils. The constitutive model offers the ability to simulate the effect of stress-induced anisotropy on the plastic response. Several numerical examples are provided for verification purposes and sensitivity analysis, demonstrating the capabilities of the presented framework.

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Finite element solution for static and dynamic interactions of cylindrical rigid objects and unsaturated granular soils. / Ghorbani, Javad; Nazem, Majidreza; Kodikara, Jayantha et al.
in: Computer Methods in Applied Mechanics and Engineering, Jahrgang 384, 113974, 01.10.2021.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

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abstract = "By employing a mortar-type contact algorithm, we develop a theoretical and numerical framework for elastoplastic interaction of unsaturated granular soils with a rigid cylindrical object in both static and dynamic analyses. The elastoplastic response is modelled with a constitutive model based on the effective stress concept for unsaturated soils. The constitutive model offers the ability to simulate the effect of stress-induced anisotropy on the plastic response. Several numerical examples are provided for verification purposes and sensitivity analysis, demonstrating the capabilities of the presented framework.",
keywords = "Contact mechanics, Coupled analysis, Plasticity, Soil dynamics, Unsaturated soils",
author = "Javad Ghorbani and Majidreza Nazem and Jayantha Kodikara and Peter Wriggers",
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T1 - Finite element solution for static and dynamic interactions of cylindrical rigid objects and unsaturated granular soils

AU - Ghorbani, Javad

AU - Nazem, Majidreza

AU - Kodikara, Jayantha

AU - Wriggers, Peter

N1 - Funding Information: This research work is part of a research project ( Project No IH18.03.1 ) sponsored by the SPARC Hub at the Department of Civil Engineering, Monash University funded by the Australian Research Council (ARC) Industrial Transformation Research Hub (ITRH) Scheme (Project ID: IH180100010 ). The financial and in-kind support from CIMIC Group, EIC Activities, Austroads, and Monash University is gratefully acknowledged. Also, the financial support from ARC is highly acknowledged.

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N2 - By employing a mortar-type contact algorithm, we develop a theoretical and numerical framework for elastoplastic interaction of unsaturated granular soils with a rigid cylindrical object in both static and dynamic analyses. The elastoplastic response is modelled with a constitutive model based on the effective stress concept for unsaturated soils. The constitutive model offers the ability to simulate the effect of stress-induced anisotropy on the plastic response. Several numerical examples are provided for verification purposes and sensitivity analysis, demonstrating the capabilities of the presented framework.

AB - By employing a mortar-type contact algorithm, we develop a theoretical and numerical framework for elastoplastic interaction of unsaturated granular soils with a rigid cylindrical object in both static and dynamic analyses. The elastoplastic response is modelled with a constitutive model based on the effective stress concept for unsaturated soils. The constitutive model offers the ability to simulate the effect of stress-induced anisotropy on the plastic response. Several numerical examples are provided for verification purposes and sensitivity analysis, demonstrating the capabilities of the presented framework.

KW - Contact mechanics

KW - Coupled analysis

KW - Plasticity

KW - Soil dynamics

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JO - Computer Methods in Applied Mechanics and Engineering

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