- Title
- Three-dimensional spherical discontinuous deformation analysis using second-order cone programming
- Creator
- Meng, Jingjing; Cao, Ping; Huang, Jinsong; Lin, Hang; Li, Kaihui; Cao, Rihong
- Relation
- Computers and Geotechnics Vol. 112, Issue August 2019, p. 319-328
- Publisher Link
- http://dx.doi.org/10.1016/j.compgeo.2019.04.023
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2019
- Description
- In this paper, a new formulation of three-dimensional spherical discontinuous deformation analysis (DDA) based on second-order cone programming has been proposed. Artificial springs with open-close iteration used in classic DDA have been removed, given that improper stiffness parameters might cause numerical problems. Furthermore, to account for irregular granular shapes, a rolling resistance model is incorporated in the variational formulation. The proposed formulation can be cast into a standard second-order cone programming program, which can be solved using efficient off-the-shelf optimisation solvers. The proposed approach is validated by a series of numerical examples.
- Subject
- discontinuous deformation analysis; second-order cone programming; contact problems; discrete element method; mathematical programming
- Identifier
- http://hdl.handle.net/1959.13/1451793
- Identifier
- uon:44272
- Identifier
- ISSN:0266-352X
- Language
- eng
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