Numerical shakedown and non-shakedown responses of a Tresca half-space to a three-dimensional moving load

Shu Liu, Juan Wang, Hai Sui Yu, Dariusz Wanatowski

Research output: Contribution to conferencePaperpeer-review

2 Citations (Scopus)

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 elastic-plastic 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.

Original languageEnglish
Pages1385-1388
Number of pages4
Publication statusPublished - 2017
Event19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017 - Seoul, Korea, Republic of
Duration: 17 Sep 201722 Sep 2017

Conference

Conference19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017
Country/TerritoryKorea, Republic of
CitySeoul
Period17/09/1722/09/17

Keywords

  • Residual stresses
  • Shakedown
  • Three-dimensional solutions
  • Tresca half-space

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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