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Mechanics of Composite Materials

, Volume 54, Issue 6, pp 765–774 | Cite as

Fiber Path Optimization in a Variable-Stifness Cylinder to Maximize Its Buckling Load Under External Hydrostatic Pressure

  • H. Nopour
  • A. Kabiri Ataabadi
  • M. M. ShokriehEmail author
Article
  • 39 Downloads

The optimum paths and orientations for curvilinear and straight fibers in composite cylindrical shells of variable and constant stiffness under external hydrostatic pressure are obtained and compared. The optimization was performed for several length-to-diameter ratios of the shells. Results showed that the buckling pressure of the variable-stiffness shell was by about 30℅ higher than that of the constant-stiffness one. This increase in the buckling pressure was obtained by locating fibers in the hoop direction in the middle of the cylinder and orienting the fibers toward the longitudinal direction on cylinder edges.

Keywords

cylindrical shell external hydrostatic pressure variable stiffness curvilinear fiber buckling 

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • H. Nopour
    • 1
  • A. Kabiri Ataabadi
    • 1
  • M. M. Shokrieh
    • 2
    Email author
  1. 1.Department of Mechanical EngineeringMalek Ashtar University of TechnologyTehranIran
  2. 2.Composites Research Laboratory, Center of Excellence in Solid Mechanics, School of Mechanical EngineeringIran University of Science and TechnologyTehranIran

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