Bounds on buckling response for anisotropic laminated plates

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Abstract

Nondimensional parameters and equations governing the buckling behavior of rectangular symmetrically laminated plates are presented that can be used to represent the buckling resistance, for plates made of all known structural materials. Bounds for these nondimensional parameters are also presented that are based on thermodynamics. These bounds provide insight into potential gains in buckling resistance through laminate tailoring and composite-material development. As an illustration of this point, upper bounds on the buckling resistance of long rectangular orthotropic plates with simply supported edges and subjected to uniform axial compression and uniform shear are presented. The results indicate that the maximum gain in buckling resistance for tailored orthotropic laminates, with respect to the corresponding isotropic plate, is in the range of 33% for plates with simply supported edges ,under compression loading conditions. For the plates subjected to shear, the corresponding gains in buckling resistance are in the range of 90% and occurs for plates with flexural anisotropy.

Original languageEnglish
Title of host publicationProceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness
Subtitle of host publicationFrom Green Composites to Aerospace"
PublisherInternational Committee on Composite Materials
ISBN (Print)9784931136052
Publication statusPublished - 2007
Externally publishedYes

Publication series

NameICCM International Conferences on Composite Materials

Keywords

  • Buckling
  • Design
  • Lamination parameters
  • Property bounds

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