INVESTIGATION ON THE INFLUENCE OF STIFFENER SIZE ON THE BUCKLING PRESSURES OF CIRCULAR CYLINDRICAL SHELLS UNDER HYDROSTATIC PRESSURE
Abstract
A theoretical derivation is given for elastic and plastic buckling of stiffened circular cylindrical shells under external hydrostatic pressure. The theory accounts for variable shell stresses, as influenced by the circular stiffeners, and critical buckling pressures are obtained for simple support conditions at the shell-frame junctures. Methods are given for the determination of collapse pressures for both elastic and plastic asymmetric buckling by interation and numerical minimization. The theory is applicable to shells made either of strain-hardening or elastic-perfectly plastic materials. Using the theory, it is shown that a variation in stiffener size can change the buckling pressures. Test data from high-strength steel and aluminum cylinders are presented which show theoretical and experimental collapse pressures to agree within approximately 6 per cent.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1961
- Accession Number
- AD0268909
Entities
People
- James A. Nott