Improving efficiency, stability, and accuracy of finite element solutions for solving dynamic contact problems involving unsaturated soils

Javad Ghorbani; Liuxin Chen; Jayantha Kodikara; John P. Carter; John S. McCartney

doi:10.1007/978-3-031-12851-6_22

Improving efficiency, stability, and accuracy of finite element solutions for solving dynamic contact problems involving unsaturated soils

Javad Ghorbani, Liuxin Chen, Jayantha Kodikara, John P. Carter, John S. McCartney

Civil & Environmental Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

Abstract

The paper investigates the efficiency, stability, and accuracy of finite element solutions based on the mortar approach in solving dynamic contact problems that involve unsaturated soils. We employ a fully coupled finite element solution and a recently developed bounding surface model for describing the hydro-mechanical hysteresis of unsaturated soils. The paper discusses a key source of instability in numerical simulations of this class of problems which is stress overshooting. We evaluate the efficiency of a solution for this problem and discuss the impact of this solution on improving the accuracy and stability of numerical simulations. Numerical simulations are presented for verification and analysis of efficiency, stability, and accuracy.

Original language	English
Title of host publication	Challenges and Innovations in Geomechanics - Proceedings of the 16th International Conference of IACMAG - Volume 3
Editors	Marco Barla, Alessandra Insana, Alice Di Donna, Donatella Sterpi
Publisher	Springer
Pages	177-184
Number of pages	8
ISBN (Print)	9783031128509
DOIs	https://doi.org/10.1007/978-3-031-12851-6_22
Publication status	Published - 2023
Event	International Conference of the International Association for Computer Methods and Advances in Geomechanics 2022 - Turin, Italy Duration: 30 Aug 2022 → 2 Sept 2022 Conference number: 6th https://link.springer.com/book/10.1007/978-3-031-12851-6 (Proceedings)

Publication series

Name	Lecture Notes in Civil Engineering
Publisher	Springer
Volume	288
ISSN (Print)	2366-2557
ISSN (Electronic)	2366-2565

Conference

Conference	International Conference of the International Association for Computer Methods and Advances in Geomechanics 2022
Abbreviated title	IACMAG 2022
Country/Territory	Italy
City	Turin
Period	30/08/22 → 2/09/22
Internet address	https://link.springer.com/book/10.1007/978-3-031-12851-6 (Proceedings)

Keywords

Contact mechanics
Dynamics
Finite element analysis
Plasticity
Stress overshooting
Unsaturated soils

Access to Document

10.1007/978-3-031-12851-6_22

Cite this

Ghorbani, J., Chen, L., Kodikara, J., Carter, J. P., & McCartney, J. S. (2023). Improving efficiency, stability, and accuracy of finite element solutions for solving dynamic contact problems involving unsaturated soils. In M. Barla, A. Insana, A. Di Donna, & D. Sterpi (Eds.), Challenges and Innovations in Geomechanics - Proceedings of the 16th International Conference of IACMAG - Volume 3 (pp. 177-184). (Lecture Notes in Civil Engineering; Vol. 288). Springer. https://doi.org/10.1007/978-3-031-12851-6_22

Ghorbani, Javad ; Chen, Liuxin ; Kodikara, Jayantha et al. / Improving efficiency, stability, and accuracy of finite element solutions for solving dynamic contact problems involving unsaturated soils. Challenges and Innovations in Geomechanics - Proceedings of the 16th International Conference of IACMAG - Volume 3. editor / Marco Barla ; Alessandra Insana ; Alice Di Donna ; Donatella Sterpi. Springer, 2023. pp. 177-184 (Lecture Notes in Civil Engineering).

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title = "Improving efficiency, stability, and accuracy of finite element solutions for solving dynamic contact problems involving unsaturated soils",

abstract = "The paper investigates the efficiency, stability, and accuracy of finite element solutions based on the mortar approach in solving dynamic contact problems that involve unsaturated soils. We employ a fully coupled finite element solution and a recently developed bounding surface model for describing the hydro-mechanical hysteresis of unsaturated soils. The paper discusses a key source of instability in numerical simulations of this class of problems which is stress overshooting. We evaluate the efficiency of a solution for this problem and discuss the impact of this solution on improving the accuracy and stability of numerical simulations. Numerical simulations are presented for verification and analysis of efficiency, stability, and accuracy.",

keywords = "Contact mechanics, Dynamics, Finite element analysis, Plasticity, Stress overshooting, Unsaturated soils",

author = "Javad Ghorbani and Liuxin Chen and Jayantha Kodikara and Carter, \{John P.\} and McCartney, \{John S.\}",

note = "Publisher Copyright: {\textcopyright} 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.; International Conference of the International Association for Computer Methods and Advances in Geomechanics 2022, IACMAG 2022 ; Conference date: 30-08-2022 Through 02-09-2022",

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booktitle = "Challenges and Innovations in Geomechanics - Proceedings of the 16th International Conference of IACMAG - Volume 3",

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Ghorbani, J, Chen, L, Kodikara, J, Carter, JP & McCartney, JS 2023, Improving efficiency, stability, and accuracy of finite element solutions for solving dynamic contact problems involving unsaturated soils. in M Barla, A Insana, A Di Donna & D Sterpi (eds), Challenges and Innovations in Geomechanics - Proceedings of the 16th International Conference of IACMAG - Volume 3. Lecture Notes in Civil Engineering, vol. 288, Springer, pp. 177-184, International Conference of the International Association for Computer Methods and Advances in Geomechanics 2022, Turin, Italy, 30/08/22. https://doi.org/10.1007/978-3-031-12851-6_22

Improving efficiency, stability, and accuracy of finite element solutions for solving dynamic contact problems involving unsaturated soils. / Ghorbani, Javad; Chen, Liuxin; Kodikara, Jayantha et al.
Challenges and Innovations in Geomechanics - Proceedings of the 16th International Conference of IACMAG - Volume 3. ed. / Marco Barla; Alessandra Insana; Alice Di Donna; Donatella Sterpi. Springer, 2023. p. 177-184 (Lecture Notes in Civil Engineering; Vol. 288).

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

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T1 - Improving efficiency, stability, and accuracy of finite element solutions for solving dynamic contact problems involving unsaturated soils

AU - Ghorbani, Javad

AU - Chen, Liuxin

AU - Kodikara, Jayantha

AU - Carter, John P.

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AB - The paper investigates the efficiency, stability, and accuracy of finite element solutions based on the mortar approach in solving dynamic contact problems that involve unsaturated soils. We employ a fully coupled finite element solution and a recently developed bounding surface model for describing the hydro-mechanical hysteresis of unsaturated soils. The paper discusses a key source of instability in numerical simulations of this class of problems which is stress overshooting. We evaluate the efficiency of a solution for this problem and discuss the impact of this solution on improving the accuracy and stability of numerical simulations. Numerical simulations are presented for verification and analysis of efficiency, stability, and accuracy.

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KW - Dynamics

KW - Finite element analysis

KW - Plasticity

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ER -

Ghorbani J, Chen L, Kodikara J, Carter JP, McCartney JS. Improving efficiency, stability, and accuracy of finite element solutions for solving dynamic contact problems involving unsaturated soils. In Barla M, Insana A, Di Donna A, Sterpi D, editors, Challenges and Innovations in Geomechanics - Proceedings of the 16th International Conference of IACMAG - Volume 3. Springer. 2023. p. 177-184. (Lecture Notes in Civil Engineering). doi: 10.1007/978-3-031-12851-6_22

Improving efficiency, stability, and accuracy of finite element solutions for solving dynamic contact problems involving unsaturated soils

Abstract

Publication series

Conference

Keywords

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