INELASTIC BUCKLING OF A DEEP SPHERICAL SHELL SUBJECT TO EXTERNAL PRESSURE

The report is concerned with the investigation of the inelastic buckling of a deep spherical shell subject to a uniformly distributed external pressure. The geometry of the shell is considered to be axisymmetrical while the shell thickness may vary as a function of the polar angle. The edge of the shell is supported elastically. The material of the shell is assumed to satisfy the generalized Ramberg-Osgood stress-strain relations and a power law of steady creep. The analysis is based on Sanders' nonlinear theory of thin shells expressed in an incremental form and Hill's theory of inelastic bifurcation. Computations are carried out by a numerical iterative procedure associated with a finite difference method. Solutions are sought for both the axisymmetrical inelastic buckling and the asymmetrical bifurcation. (Author)

• Corporate Authors:

  Notre Dame University

  College of Engineering
  Notre Dame, Indiana,   United States  46556
• Authors:
  • Huang, N C
  • Funk, G
• Publication Date: 1973-7

Media Info

• Pagination: 69 p.

Subject/Index Terms

• TRT Terms: Buckling; Computer programs; Creep; Deformation; Finite differences; Hulls; Hydrostatic pressure; Mathematical models; Pressure vessels; Shells (Structural forms); Spheres; Stresses; Underwater vehicles
• Uncontrolled Terms: Ship hulls
• Old TRIS Terms: Bifurcation theory; Spherical shells
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00051134
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: UND-73-7 Tech Rpt
• Contract Numbers: N00014-68-A-0152
• Files: TRIS
• Created Date: Feb 28 1974 12:00AM