STABILITY OF SPIRALLY STIFFENED
SHELLS UNDER EXTERNAL PRESSURE

B. V. Nerubailo, G. D. Zubkov,
and M. V. Mochalov

UDC 539.3

Based on the use of a semizero-moment theory of thin shells, 
simple computational formulas for determination of the critical pressure 
on the shell have been obtained; these formulas contain all the necessary 
mechanical and geometric characteristics of the shell and the structure 
which are, in essence, a generalization of the well-known and widely 
used formulas for homogeneous isotropic shells.

Moscow State Aviation Institute (Technical University), 
4 Volokolamskoe Shosse, Moscow, 125871, Russia; email: prof_nebo@mail.ru. 
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 79, No. 1, pp. 
196-198, January-February, 2006. Original article submitted 
May 19, 2004.