Liu, S, Wang, J, Yu, HS et al. (1 more author) (2017) Numerical shakedown and non-shakedown responses of a Tresca half-space to a three-dimensional moving load. In: Proceedings. 19th International Conference on Soil Mechanics and Geotechnical Engineering (ICSMGE 2017), 17-22 Sep 2017, Seoul, Korea. ICSMGE , pp. 1385-1388.
Abstract
Flexible pavements may fail due to excessive rutting as a result of accumulative plastic deformation; otherwise, if the load is small enough, pavements may deform plastically in the first number of load cycles and then reach a stable state which is termed as ‘shakedown’. Recently some lower-bound and upper-bound solutions have been developed to directly determine the load limit (i.e. shakedown limit) below which an elastic-plastic half space can shake down. However, the actual responses of an elasticplastic half-space subjected to repeated moving loads were not well revealed. In the present study, repeated moving surface loads are applied to a three-dimensional finite element model established in ABAQUS to research on the development of stresses and strains in a Tresca half-space. Also, a numerical shakedown limit can be determined according to the yield condition of structure under a static load following a number of load passes. It is found the development of residual stresses induced by plastic strains plays a key role in helping the half-space to reach the shakedown state. Good agreements are also observed between numerical and theoretical solutions for both shakedown limit and residual stress fields.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017, the Authors. This is an author produced version of a paper published in the Proceedings of the 19th International Conference on Soil Mechanics and Geotechnical Engineering. |
Keywords: | Shakedown; residual stresses; Tresca half-space; three-dimensional solutions |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 18 May 2018 13:49 |
Last Modified: | 19 May 2018 13:46 |
Published Version: | https://www.issmge.org/uploads/publications/1/45/0... |
Status: | Published |
Publisher: | ICSMGE |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:131016 |