Deformation of Elastic Spherical Shells with Random Initial Imperfections (O Deformatsii Uprugoi Afericheskoi Obolochki so Sluchainymi Nepravilnostyami),
Abstract
The equilibrium of a thin elastic spherical shell with small initial imperfections under the effect of a uniform pressure is investigated in a linearized position. It is assumed that deflections from the ideal form of the shell form a uniform random field with a correlation scale quite small as compared to the radius of the median surface. The mathematical expectation of the number of maximum, minimum and saddle points on a deformed surface is computed. An approximation equation for the number of overshoot of a deformed median surface for a given level is presented. The results obtained are used for the evaluation of reliability at limitations brought about in a full normal deflection of the shell.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 31, 1974
- Accession Number
- AD0784795
Entities
People
- V. V. Bolotin
- V. Yu. Bolokhovskii
Organizations
- Office of Naval Intelligence