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Steel and Composite Structures
  Volume 12, Number 1, January 2012, pages 1-11

Static analysis of FGM cylinders by a mesh-free method
M. Foroutan, R. Moradi-Dastjerdi,and R. Sotoodeh-Bahreini

    In this paper static analysis of FGM cylinders subjected to internal and external pressure was carried out by a mesh-free method. In this analysis MLS shape functions are used for approximation of displacement field in the weak form of equilibrium equation and essential boundary conditions are imposed by transformation method. Mechanical properties of cylinders were assumed to be variable in the radial direction. Two types of cylinders were analyzed in this work. At first cylinders with infinite length were considered and results obtained for these cylinders were compared with analytical solutions and a very good agreement was seen between them. Then the proposed mesh-free method was used for analysis of cylinders with finite length and two different types of boundary conditions. Results obtained from these analyses were compared with results of finite element analyses and a very good agreement was seen between them.
Key Words
    FGM; cylinder; stress; mesh-free; MLS shape function; FEM.
M. Foroutan,and R. Sotoodeh-Bahreini : Mechanical Engineering Department, Razi University, Kermanshah, Iran
R. Moradi-Dastjerdi : Islamic Azad University

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