Application of the generalised-α method in dynamic analysis of partially saturated media

Javad Ghorbani; Majidreza Nazem; John Carter

Application of the generalised-α method in dynamic analysis of partially saturated media

Javad Ghorbani, Majidreza Nazem, John Carter

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

Abstract

The main aim of this study is to apply a robust time integration technique for simulating the behaviour of unsaturated soils subjected to dynamic loads. The governing equations of the three soil phases and their interactions are derived based on the mass conservation law, linear momentum balance and energy conservation of each phase in an isothermal environment. In addition, a number of experimental equations are employed to represent the hydraulic conductivity and the drainage characteristics of the soil, such as the suction-saturation relationship and the dependency of the hydraulic conductivity on suction. The global system of equations is then solved by using an implicit time-stepping algorithm based on the Generalised-α integration scheme. The accuracy of the numerical model and the finite element code is verified by comparing the numerical results with results obtained by an analytical solution.

Original language	English
Title of host publication	Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014
Publisher	Taylor & Francis
Pages	129-134
Number of pages	6
ISBN (Print)	9781138001480
Publication status	Published - 2015
Externally published	Yes
Event	International Conference of the International Association for Computer Methods and Advances in Geomechanics 2014 - Kyoto, Japan Duration: 22 Sep 2014 → 25 Sep 2014 Conference number: 14th

Publication series

Name	Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014

Conference

Conference	International Conference of the International Association for Computer Methods and Advances in Geomechanics 2014
Abbreviated title	IACMAG 2014
Country/Territory	Japan
City	Kyoto
Period	22/09/14 → 25/09/14

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

Ghorbani, J., Nazem, M., & Carter, J. (2015). Application of the generalised-α method in dynamic analysis of partially saturated media. In Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014 (pp. 129-134). (Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014). Taylor & Francis.

Ghorbani, Javad ; Nazem, Majidreza ; Carter, John. / Application of the generalised-α method in dynamic analysis of partially saturated media. Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014. Taylor & Francis, 2015. pp. 129-134 (Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014).

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title = "Application of the generalised-α method in dynamic analysis of partially saturated media",

abstract = "The main aim of this study is to apply a robust time integration technique for simulating the behaviour of unsaturated soils subjected to dynamic loads. The governing equations of the three soil phases and their interactions are derived based on the mass conservation law, linear momentum balance and energy conservation of each phase in an isothermal environment. In addition, a number of experimental equations are employed to represent the hydraulic conductivity and the drainage characteristics of the soil, such as the suction-saturation relationship and the dependency of the hydraulic conductivity on suction. The global system of equations is then solved by using an implicit time-stepping algorithm based on the Generalised-α integration scheme. The accuracy of the numerical model and the finite element code is verified by comparing the numerical results with results obtained by an analytical solution.",

author = "Javad Ghorbani and Majidreza Nazem and John Carter",

year = "2015",

language = "English",

isbn = "9781138001480",

series = "Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014",

publisher = "Taylor & Francis",

pages = "129--134",

booktitle = "Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014",

address = "United Kingdom",

note = "International Conference of the International Association for Computer Methods and Advances in Geomechanics 2014, IACMAG 2014 ; Conference date: 22-09-2014 Through 25-09-2014",

}

Ghorbani, J, Nazem, M & Carter, J 2015, Application of the generalised-α method in dynamic analysis of partially saturated media. in Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014. Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014, Taylor & Francis, pp. 129-134, International Conference of the International Association for Computer Methods and Advances in Geomechanics 2014, Kyoto, Japan, 22/09/14.

Application of the generalised-α method in dynamic analysis of partially saturated media. / Ghorbani, Javad; Nazem, Majidreza; Carter, John.

Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014. Taylor & Francis, 2015. p. 129-134 (Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014).

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

TY - GEN

T1 - Application of the generalised-α method in dynamic analysis of partially saturated media

AU - Ghorbani, Javad

AU - Nazem, Majidreza

AU - Carter, John

N1 - Conference code: 14th

PY - 2015

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N2 - The main aim of this study is to apply a robust time integration technique for simulating the behaviour of unsaturated soils subjected to dynamic loads. The governing equations of the three soil phases and their interactions are derived based on the mass conservation law, linear momentum balance and energy conservation of each phase in an isothermal environment. In addition, a number of experimental equations are employed to represent the hydraulic conductivity and the drainage characteristics of the soil, such as the suction-saturation relationship and the dependency of the hydraulic conductivity on suction. The global system of equations is then solved by using an implicit time-stepping algorithm based on the Generalised-α integration scheme. The accuracy of the numerical model and the finite element code is verified by comparing the numerical results with results obtained by an analytical solution.

AB - The main aim of this study is to apply a robust time integration technique for simulating the behaviour of unsaturated soils subjected to dynamic loads. The governing equations of the three soil phases and their interactions are derived based on the mass conservation law, linear momentum balance and energy conservation of each phase in an isothermal environment. In addition, a number of experimental equations are employed to represent the hydraulic conductivity and the drainage characteristics of the soil, such as the suction-saturation relationship and the dependency of the hydraulic conductivity on suction. The global system of equations is then solved by using an implicit time-stepping algorithm based on the Generalised-α integration scheme. The accuracy of the numerical model and the finite element code is verified by comparing the numerical results with results obtained by an analytical solution.

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AN - SCOPUS:84907343392

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BT - Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014

PB - Taylor & Francis

T2 - International Conference of the International Association for Computer Methods and Advances in Geomechanics 2014

Y2 - 22 September 2014 through 25 September 2014

ER -

Ghorbani J, Nazem M, Carter J. Application of the generalised-α method in dynamic analysis of partially saturated media. In Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014. Taylor & Francis. 2015. p. 129-134. (Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014).

Application of the generalised-α method in dynamic analysis of partially saturated media

Abstract

Publication series

Conference

UN SDGs

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