INELASTIC BUCKLING OF SHALLOW SPHERICAL SHELLS UNDER EXTERNAL PRESSURE

In this paper the inelastic effect on the buckling load of a clamped shallow spherical shell subjected to an external pressure is investigated. A variational principle derived from a set of rate equilibrium equations and expressed in terms of Lagrangian variables is used to determine the critical pressure. This pressure is determined by a step-by-step numerical process based on a Rayleigh-Ritz technique. The spherical shell is idealized as a structure composed of four thin load-carrying layers of equal thickness and made of a work hardening material. The numerical results of the present analysis compare favorably with those of available experimental work. (Author)

• Corporate Authors:

  Notre Dame University

  Notre Dame, Indiana,   United States  46556
• Authors:
  • Sureshwara, B
  • Lee, LHN
  • Ariman, T
• Publication Date: 1971-7

Media Info

• Pagination: 36 p.

Subject/Index Terms

• TRT Terms: Buckling; Failure; Shells (Structural forms); Structural analysis
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00024782
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: THEMIS-UND-71-2 Tech Rpt
• Contract Numbers: N00014-68-A-0152
• Files: TRIS
• Created Date: Jan 14 1972 12:00AM