Smith, C.C. and Gilbert, M. (2015) Modelling rotational failure in confined geometries using DLO. Proceedings of the Institution of Civil Engineers - Engineering and Computational Mechanics, 168 (4). pp. 155-168. ISSN 0965-089X
Abstract
Discontinuity layout optimisation (DLO) is a generally applicable numerical limit analysis procedure that can be used to identify critical plastic collapse mechanisms in engineering problems. Considering the modelling of in-plane failure, the authors have previously presented a formulation capable of identifying rotational failure mechanisms in non-dilating media. However, the formulation presented did not explicitly address cases involving confined geometries, where curved slip lines could potentially intersect boundaries. In this paper, methods are outlined which permit efficient modelling of such cases. Details of the kinematic and equilibrium formulations are provided, which are then verified through application to various geotechnical and structural mechanics problems. It is shown that results of high accuracy can be obtained, both in terms of the predicted collapse load and the corresponding failure mechanism.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2015 ICE |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield) |
Funding Information: | Funder Grant number ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL (EPSRC) EP/I014489/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 12 Feb 2016 11:55 |
Last Modified: | 02 Dec 2016 22:35 |
Published Version: | https://dx.doi.org/10.1680/jencm.15.00016 |
Status: | Published |
Publisher: | Thomas Telford |
Refereed: | Yes |
Identification Number: | 10.1680/jencm.15.00016 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:94124 |