A Nonlocal Elasto-Plastic Model for Structured Soils at Large Strains for the Particle Finite Element Method

Lluís Monforte; Matteo Ciantia; Josep Maria Carbonell; Marcos Arroyo; Antonio Gens

doi:10.1007/978-3-030-64518-2_64

A Nonlocal Elasto-Plastic Model for Structured Soils at Large Strains for the Particle Finite Element Method

Lluís Monforte, Matteo Ciantia, Josep Maria Carbonell, Marcos Arroyo, Antonio Gens

Civil Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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Abstract

This work presents a robust and mesh-independent implementation of an elasto-plastic constitutive model at large strains, appropriate for structured soils, into a Particle Finite Element code specially developed for geotechnical simulations. The constitutive response of structured soils is characterized by softening and, thus, leading to strain localization. Strain localization poses two numerical challenges: mesh dependence of the solution and computability of the solution. The former is mitigated by employing a non-local integral type regularization whereas an Implicit-Explicit integration scheme is used to enhance the computability. The good performance of these techniques is highlighted in the simulation of the cone penetration test in undrained conditions.

Original language	English
Title of host publication	Challenges and Innovations in Geomechanics
Subtitle of host publication	Proceedings of the 16th International Conference of IACMAG - Volume 2
Editors	Marco Barla, Alice Di Donna, Donatella Sterpi
Place of Publication	Switzerland
Publisher	Springer
Pages	544-551
Number of pages	8
Volume	2
ISBN (Electronic)	9783030645182
ISBN (Print)	9783030645175
DOIs	https://doi.org/10.1007/978-3-030-64518-2_64
Publication status	Published - 2021

Publication series

Name	Lecture Notes in Civil Engineering
Volume	126
ISSN (Print)	2366-2557
ISSN (Electronic)	2366-2565

Keywords

Constitutive modeling
Nonlocal elasto-plasticity
PFEM
Structured soils

ASJC Scopus subject areas

Civil and Structural Engineering

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10.1007/978-3-030-64518-2_64

Author Accepted ManuscriptAccepted author manuscript, 319 KB

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Monforte, L., Ciantia, M., Carbonell, J. M., Arroyo, M., & Gens, A. (2021). A Nonlocal Elasto-Plastic Model for Structured Soils at Large Strains for the Particle Finite Element Method. In M. Barla, A. Di Donna, & D. Sterpi (Eds.), Challenges and Innovations in Geomechanics: Proceedings of the 16th International Conference of IACMAG - Volume 2 (Vol. 2, pp. 544-551). (Lecture Notes in Civil Engineering; Vol. 126). Springer . https://doi.org/10.1007/978-3-030-64518-2_64

Monforte, Lluís ; Ciantia, Matteo ; Carbonell, Josep Maria et al. / A Nonlocal Elasto-Plastic Model for Structured Soils at Large Strains for the Particle Finite Element Method. Challenges and Innovations in Geomechanics: Proceedings of the 16th International Conference of IACMAG - Volume 2. editor / Marco Barla ; Alice Di Donna ; Donatella Sterpi. Vol. 2 Switzerland : Springer , 2021. pp. 544-551 (Lecture Notes in Civil Engineering).

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title = "A Nonlocal Elasto-Plastic Model for Structured Soils at Large Strains for the Particle Finite Element Method",

abstract = "This work presents a robust and mesh-independent implementation of an elasto-plastic constitutive model at large strains, appropriate for structured soils, into a Particle Finite Element code specially developed for geotechnical simulations. The constitutive response of structured soils is characterized by softening and, thus, leading to strain localization. Strain localization poses two numerical challenges: mesh dependence of the solution and computability of the solution. The former is mitigated by employing a non-local integral type regularization whereas an Implicit-Explicit integration scheme is used to enhance the computability. The good performance of these techniques is highlighted in the simulation of the cone penetration test in undrained conditions.",

keywords = "Constitutive modeling, Nonlocal elasto-plasticity, PFEM, Structured soils",

author = "Llu{\'i}s Monforte and Matteo Ciantia and Carbonell, {Josep Maria} and Marcos Arroyo and Antonio Gens",

note = "Funding Information: The financial support of the Ministry of Science and Innovation of Spain through research grant BIA2017?84752-R is gratefully appreciated. Publisher Copyright: {\textcopyright} 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.",

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Monforte, L, Ciantia, M, Carbonell, JM, Arroyo, M & Gens, A 2021, A Nonlocal Elasto-Plastic Model for Structured Soils at Large Strains for the Particle Finite Element Method. in M Barla, A Di Donna & D Sterpi (eds), Challenges and Innovations in Geomechanics: Proceedings of the 16th International Conference of IACMAG - Volume 2. vol. 2, Lecture Notes in Civil Engineering, vol. 126, Springer , Switzerland, pp. 544-551. https://doi.org/10.1007/978-3-030-64518-2_64

A Nonlocal Elasto-Plastic Model for Structured Soils at Large Strains for the Particle Finite Element Method. / Monforte, Lluís; Ciantia, Matteo; Carbonell, Josep Maria et al.
Challenges and Innovations in Geomechanics: Proceedings of the 16th International Conference of IACMAG - Volume 2. ed. / Marco Barla; Alice Di Donna; Donatella Sterpi. Vol. 2 Switzerland: Springer , 2021. p. 544-551 (Lecture Notes in Civil Engineering; Vol. 126).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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T1 - A Nonlocal Elasto-Plastic Model for Structured Soils at Large Strains for the Particle Finite Element Method

AU - Monforte, Lluís

AU - Ciantia, Matteo

AU - Carbonell, Josep Maria

AU - Arroyo, Marcos

AU - Gens, Antonio

N1 - Funding Information: The financial support of the Ministry of Science and Innovation of Spain through research grant BIA2017?84752-R is gratefully appreciated. Publisher Copyright: © 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021

Y1 - 2021

N2 - This work presents a robust and mesh-independent implementation of an elasto-plastic constitutive model at large strains, appropriate for structured soils, into a Particle Finite Element code specially developed for geotechnical simulations. The constitutive response of structured soils is characterized by softening and, thus, leading to strain localization. Strain localization poses two numerical challenges: mesh dependence of the solution and computability of the solution. The former is mitigated by employing a non-local integral type regularization whereas an Implicit-Explicit integration scheme is used to enhance the computability. The good performance of these techniques is highlighted in the simulation of the cone penetration test in undrained conditions.

AB - This work presents a robust and mesh-independent implementation of an elasto-plastic constitutive model at large strains, appropriate for structured soils, into a Particle Finite Element code specially developed for geotechnical simulations. The constitutive response of structured soils is characterized by softening and, thus, leading to strain localization. Strain localization poses two numerical challenges: mesh dependence of the solution and computability of the solution. The former is mitigated by employing a non-local integral type regularization whereas an Implicit-Explicit integration scheme is used to enhance the computability. The good performance of these techniques is highlighted in the simulation of the cone penetration test in undrained conditions.

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BT - Challenges and Innovations in Geomechanics

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Monforte L, Ciantia M, Carbonell JM, Arroyo M, Gens A. A Nonlocal Elasto-Plastic Model for Structured Soils at Large Strains for the Particle Finite Element Method. In Barla M, Di Donna A, Sterpi D, editors, Challenges and Innovations in Geomechanics: Proceedings of the 16th International Conference of IACMAG - Volume 2. Vol. 2. Switzerland: Springer . 2021. p. 544-551. (Lecture Notes in Civil Engineering). Epub 2021 Jan 15. doi: 10.1007/978-3-030-64518-2_64

A Nonlocal Elasto-Plastic Model for Structured Soils at Large Strains for the Particle Finite Element Method

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