Limit state analysis of reinforced concrete slabs using an integrated radial basis function based mesh-free method
Article
Article Title | Limit state analysis of reinforced concrete slabs using an integrated radial basis function based mesh-free method |
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ERA Journal ID | 48 |
Article Category | Article |
Authors | Ho, Phuc L. H. (Author), Le, Canh V. (Author) and Tran-Cong, T. (Author) |
Journal Title | Applied Mathematical Modelling: simulation and computation for engineering and environmental systems |
Journal Citation | 53, pp. 1-11 |
Number of Pages | 11 |
Year | 2018 |
Publisher | Elsevier |
Place of Publication | United States |
ISSN | 0307-904X |
1872-8480 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.apm.2017.08.006 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0307904X17305152 |
Abstract | Limit analysis, a general and powerful method to predict the collapse load of reinforced concrete slabs, combines the limit theorems of classical plasticity with numerical methods, and results in an optimization problem. The number of variables in the corresponding optimization problem depends on the number of degrees of freedom used per node. In this paper, a rotation-free meshfree method based on integrated radial basis functions (iRBF) is developed. There is no rotational degree of freedom involved in the approximation, and hence the size of the resultant optimization problem is kept to a minimum. Moreover, the iRBF based shape functions hold the Kronecker delta property, ensuring that there is no need for any special treatment when enforcing essential boundary conditions. The obtained discrete kinematic formulation is handled using available highly efficient solvers. Various Nielsen’s reinforced concrete slabs of arbitrary geometries are examined, showing that the proposed numerical procedure is capable of providing accurate collapse load multipliers and automatically identifying yield-patterns in terms of plastic dissipation distribution. |
Keywords | Limit analysis, Yield design, Integrated radial basis function, Mesh-free method, Second order cone programming |
ANZSRC Field of Research 2020 | 490302. Numerical analysis |
490399. Numerical and computational mathematics not elsewhere classified | |
490199. Applied mathematics not elsewhere classified | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Ho Chi Minh City University of Technology and Education, Vietnam |
International University, Vietnam | |
Computational Engineering and Science Research Centre | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q76v5/limit-state-analysis-of-reinforced-concrete-slabs-using-an-integrated-radial-basis-function-based-mesh-free-method
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