Numerical Simulations for Large Deformation of Geomaterials Using Molecular Dynamics

المؤلفون المشاركون

Zhang, Jun
Zhao, Ziyang

المصدر

Advances in Materials Science and Engineering

العدد

المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-6، 6ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2018-01-28

دولة النشر

مصر

عدد الصفحات

6

الملخص 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.

نمط استشهاد جمعية علماء النفس الأمريكية (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

نمط استشهاد الجمعية الأمريكية للغات الحديثة (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

نمط استشهاد الجمعية الطبية الأمريكية (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

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-1119665