Accession Number : AD0707103

Title :   RELATIONSHIP OF A LOAD, CAUSING FLUTTER OF MILDLY SLOPING SHELL OF REVOLUTION, TO THE SHAPE OF PROFILE AND CALCULATION OF THERMOBIMETALLIC MEMBRANES,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Akelrad,E. L.

Report Date : 30 MAR 1970

Pagination or Media Count : 16

Abstract : Stability of a hinged, supported, bimetallic, mildly sloping shell of revolution with an arbitrary curve is investigated. The shell is acted upon by an axial force and a temperature dispersion varying with thickness. A deformation curve corresponding to the given value of axial force, is obtained as a result of applying the Bubnov-Galerkin method to the nonlinear equations of axial-symmetric equilibrium of such a shell with one variable parameter. The temperature which causes cracking in a shell of this or that shape, is determined by the maximum point of the curve. In addition, the lease ratio H/h (H is the ascent indicator, h the shell thickness) at which the shell flutters is determined. From an experimental study it is established that the initial stresses, produced during production of the shell, may be the source of a significant variance in the critical value of temperature. Eliminating these stresses increases stability of the construction under study. (Author)

Descriptors :   (*SHELLS(STRUCTURAL FORMS), STRESSES), LOADS(FORCES), DEFLECTION, MEMBRANES, COMPOSITE MATERIALS, DEFORMATION, ELASTIC PROPERTIES, FLUTTER, USSR

Subject Categories : Structural Engineering and Building Technology
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE