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  4. Application of a coupled Eulerian-Lagrangian approach on geomechanical problems involving large deformations
 
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Application of a coupled Eulerian-Lagrangian approach on geomechanical problems involving large deformations

Publikationstyp
Journal Article
Date Issued
2011
Sprache
English
Author(s)
Qiu, Gang  
Geotechnik und Baubetrieb B-5  
Henke, Sascha  
Geotechnik und Baubetrieb B-5  
Grabe, Jürgen  
Geotechnik und Baubetrieb B-5  
TORE-URI
https://hdl.handle.net/11420/46744
Journal
Computers and geotechnics  
Volume
38
Issue
1
Start Page
30
End Page
39
Citation
Computers and Geotechnics 38 (1): 30-38 (2011)
Publisher DOI
10.1016/j.compgeo.2010.09.002
Scopus ID
2-s2.0-78649636022
Publisher
Elsevier
Geotechnical boundary value problems involving large deformations are often difficult to solve using the classical finite element method. Large mesh distortions and contact problems can occur due to the large deformations such that a convergent solution cannot be achieved. Since Abaqus, Version 6.8, a new Coupled Eulerian-Lagrangian (CEL) approach has been developed to overcome the difficulties with regard to finite element method and large deformation analyses. This new method is investigated regarding its capabilities. First, a benchmark test, a strip footing problem is investigated and compared to analytical solutions and results of comparable finite element analyses. This benchmark test shows that CEL is well suited to deal with problems which cannot be fully solved using FEM. In further applications the CEL approach is applied to more complex geotechnical boundary value problems. First, the installation of a pile into subsoil is simulated. The pile is jacked into the ground and the results received from these analyses are compared to results of classical finite element simulations. A second case study is the simulation of a ship running aground at an embankment. The results of the CEL simulation are compared to in situ measurement data. Finally, the capabilities of the new CEL approach are evaluated regarding its robustness and efficiency.
Subjects
Coupled Eulerian-Lagrangian
Geomechanics
Hypoplasticity
Large deformations
Pile jacking
Ship grounding
Strip footing benchmark
DDC Class
624: Civil Engineering, Environmental Engineering
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