BUCKLING OF SHORT, THIN-WALLED CYLINDERS UNDER COMBINED LOADING

Short cylindrical shells are often used in offshore structures. Such cylinders are loaded by axial compression as well as hydrostatical pressure. This paper presents a rational way of estimating the load capacity by using simple, well-known theories. The elastic, critical stress of a perfect cylinder is estimated according to the classic shell-theory for the two load-cases and the respective knock-down factors are calculated according to a code or according to Koiter's classic stability-theory. This leads to an estimate of the ratio between actual stress and the elastic, critical stress of the imperfect cylinder in the two load cases. The membrane stresses and the bending stresses due to the oval imperfection of the cylinder are calculated according to the plate theory, in which the stiffness is reduced corresponding to those ratios. The capacity is defined as the load level at which a point yields according to von Mise's yield-condition.

• Supplemental Notes:
  • Proc 9th Intl Conference Offshore Mechanics & Arctic Engng, 1990, v 1, pt B, p 587 [7 p, 14 ref, 1 tab, 7 fig]
• Authors:
  • GOLTERMANN, P
• Publication Date: 1990

Language

• English

Subject/Index Terms

• TRT Terms: Axial compression; Buckling; Cylinders (Geometry); Hydrostatic pressure; Shells (Structural forms)
• Uncontrolled Terms: Cylindrical shells
• Subject Areas: Bridges and other structures; Marine Transportation;

Filing Info

• Accession Number: 00699357
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM