Numerical Simulations for Large Deformation of Geomaterials Using Molecular Dynamics
Joint Authors
Source
Advances in Materials Science and Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-01-28
Country of Publication
Egypt
No. of Pages
6
Abstract EN
From the microperspective, this paper presents a model based on a new type of noncontinuous theoretical mechanical method, molecular dynamics (MD), to simulate the typical soil granular flow.
The Hertzian friction formula and viscous damping force are introduced in the MD governing equations to model the granular flow.
To show the validity of the proposed approach, a benchmark problem of 2D viscous material flow is simulated.
The calculated final flow runout distance of the viscous material agrees well with the result of constrained interpolated profile (CIP) method as reported in the literature.
Numerical modeling of the propagation of the collapse of three-dimensional axisymmetric sand columns is performed by the application of MD models.
Comparison of the MD computational runout distance and the obtained distance by experiment shows a high degree of similarity.
This indicates that the proposed MD model can accurately represent the evolution of the granular flow.
The model developed may thus find applications in various problems involving dense granular flow and large deformations, such as landslides and debris flow.
It provides a means for predicting fluidization characteristics of soil large deformation flow disasters and for identification and design of appropriate protective measures.
American Psychological Association (APA)
Zhao, Ziyang& Zhang, Jun. 2018. Numerical Simulations for Large Deformation of Geomaterials Using Molecular Dynamics. Advances in Materials Science and Engineering،Vol. 2018, no. 2018, pp.1-6.
https://search.emarefa.net/detail/BIM-1119665
Modern Language Association (MLA)
Zhao, Ziyang& Zhang, Jun. Numerical Simulations for Large Deformation of Geomaterials Using Molecular Dynamics. Advances in Materials Science and Engineering No. 2018 (2018), pp.1-6.
https://search.emarefa.net/detail/BIM-1119665
American Medical Association (AMA)
Zhao, Ziyang& Zhang, Jun. Numerical Simulations for Large Deformation of Geomaterials Using Molecular Dynamics. Advances in Materials Science and Engineering. 2018. Vol. 2018, no. 2018, pp.1-6.
https://search.emarefa.net/detail/BIM-1119665
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1119665