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Hybrid Finite Element/Discrete Element Model for Large Deformation Geotechnical Engineering Problems

by Isao Ishibashi, Old Dominion Univ, Norfolk, United States,
Tarun K. Agarwal, Old Dominion Univ, Norfolk, United States,
You Wang, Old Dominion Univ, Norfolk, United States,



Document Type: Proceeding Paper

Part of: Computing in Civil Engineering

Abstract:

New hybrid finite element/discrete element computational code was developed for large deformation geotechnical engineering problems with granular materials. The code uses the finite element method as a global calculation tool and the discrete element method for locally near-yielded and yielded elements. The method was applied to the lateral earth pressure problem against a rigid retaining wall with various wall displacement modes. The computational results were compared excellently with the laboratory experiments even at highly stress concentrated locations.

Subject Headings: Finite element method | Geotechnical engineering | Discrete element method | Computer models | Standards and codes | Retaining structures | Granular materials

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