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Application of homotopy-Pade technique in limit analysis of circular plates under arbitrary rotational symmetric loading using von-Mises yield criterion

Kargarnovin, M. H ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1016/j.cnsns.2009.05.030
  3. Abstract:
  4. The upper and lower bound principals of limit analysis are employed to determine the critical loading on solid circular plate with simply supported boundary conditions and subjected to any distributed loading with rotational symmetry. In this study, material behavior follows a rigid perfectly plastic model and yielding obeys the von-Mises criterion. Homotopy analysis method is employed to achieve the analytical solution to the high nonlinear ordinary differential equations governing the problem. This analytic solution has been obtained in terms of convergent series with easily computable terms. The results are verified with the Tresca yield criterion and presented as plots to show the reliability and simplicity of the method
  5. Keywords:
  6. Homotopy-Padé ; Analytic solution ; Analytical solutions ; Circular plate ; Circular plates ; Convergent series ; Critical loading ; Distributed loading ; Homotopies ; Homotopy analysis method ; Homotopy analysis methods ; Limit analysis ; Lower and upper bound theorems ; Material behavior ; Mises yield criteria ; Nonlinear ordinary differential equation ; Rigid perfectly plastic model ; Rotational symmetries ; Simply supported ; Tresca yield criterion ; Upper and lower bounds ; Von mises criterion ; Boundary conditions ; Control theory ; Nonlinear equations ; Ordinary differential equations
  7. Source: Communications in Nonlinear Science and Numerical Simulation ; Volume 15, Issue 4 , 2010 , Pages 1080-1091 ; 10075704 (ISSN)
  8. URL: http://www.sciencedirect.com/science/article/pii/S100757040900286X