Details
| Original language | English |
|---|---|
| Title of host publication | Recent Developments and Innovative Applications in Computational Mechanics |
| Pages | 257-264 |
| Number of pages | 8 |
| Publication status | Published - 2011 |
Abstract
A concurrent two-scale approach for frictional non-cohesive granular materials is presented. In domains of large deformation the material is modeled on the grain scale by a 3D discrete element method. Elsewhere the material is considered continuous and modeled by the finite element method using a non-associative Mohr-Coulomb model whose parameters are fit to the particle model via a homogenization scheme. The discrete and finite element model are coupled by the Arlequin method. Therefore an overlapping domain is introduced in which the virtual work is interpolated between both models and compatibility is assured by kinematic constraints. For this purpose the discrete particle displacements are split into a fine and coarse scale part and equality of the coarse scale part and the continuum solution is enforced through the penalty method.
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Recent Developments and Innovative Applications in Computational Mechanics. 2011. p. 257-264.
Research output: Chapter in book/report/conference proceeding › Contribution to book/anthology › Research › peer review
}
TY - CHAP
T1 - A Concurrent Multiscale Approach to Non-cohesive Granular Materials
AU - Wellmann, Christian
AU - Wriggers, Peter
PY - 2011
Y1 - 2011
N2 - A concurrent two-scale approach for frictional non-cohesive granular materials is presented. In domains of large deformation the material is modeled on the grain scale by a 3D discrete element method. Elsewhere the material is considered continuous and modeled by the finite element method using a non-associative Mohr-Coulomb model whose parameters are fit to the particle model via a homogenization scheme. The discrete and finite element model are coupled by the Arlequin method. Therefore an overlapping domain is introduced in which the virtual work is interpolated between both models and compatibility is assured by kinematic constraints. For this purpose the discrete particle displacements are split into a fine and coarse scale part and equality of the coarse scale part and the continuum solution is enforced through the penalty method.
AB - A concurrent two-scale approach for frictional non-cohesive granular materials is presented. In domains of large deformation the material is modeled on the grain scale by a 3D discrete element method. Elsewhere the material is considered continuous and modeled by the finite element method using a non-associative Mohr-Coulomb model whose parameters are fit to the particle model via a homogenization scheme. The discrete and finite element model are coupled by the Arlequin method. Therefore an overlapping domain is introduced in which the virtual work is interpolated between both models and compatibility is assured by kinematic constraints. For this purpose the discrete particle displacements are split into a fine and coarse scale part and equality of the coarse scale part and the continuum solution is enforced through the penalty method.
UR - http://www.scopus.com/inward/record.url?scp=84889784510&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-17484-1_29
DO - 10.1007/978-3-642-17484-1_29
M3 - Contribution to book/anthology
AN - SCOPUS:84889784510
SN - 9783642174834
SP - 257
EP - 264
BT - Recent Developments and Innovative Applications in Computational Mechanics
ER -