The Stability of Conical and Spherical Sandwich Shells,
Abstract
A system of stability equations in terms of a given stress function, deflection W, compressional and given shear functions, for an asymmetrical-structure conical sandwich shell with a compressible light-weight core are written, assuming an initial membrane-stress state, the core to be free of stresses, and the load to be distributed between the faces proportionally to their rigidities in compression, according to the work by N. K. Galinov and Kh. M. Mushtari (in the collection of articles 'Investigations in the plate and shell theory,' no. 2 Kazan University, 1964, 35-47. Ref. 2h. Mekhanika, 1965, 9V36). The equations are simplified from the viewpoint of the local-stability theory. The obtained system of equations coincides with that for cylindrical shells with a reduced curvature radius. A formula is given for determining the axial buckling compression stress for a conical shell. The problem of the buckling of a truncated shell under uniform external pressure is solved by the Bubnov-Galerkin method. The solution of the problem of the buckling of spherical shell with a laterally isotropic light-weight core under external pressure is found by using the equations of the theory of shallow shells.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 05, 1971
- Accession Number
- AD0727896
Entities
People
- N. K. Galimov
Organizations
- National Air and Space Intelligence Center