This article is cited in 3 papers

Nonlinear deformation and stability of a noncircular cylindrical shell under combined loading with bending and twisting moments

V. K. Belov, L. P. Zheleznov, T. S. Ognyanova

Siberian Aeronautic Research Institute (SibNIA) named after S. A. Chaplygin, Novosibirsk, 630000, Russia

Abstract: A previously developed technique is used to solve problems of strength and stability of discretely reinforced noncircular cylindrical shells made of a composite material with allowance for the moments and nonlinearity of their subcritical stress-strain state. Stability of a reinforced bay of the aircraft fuselage made of a composite material under combined loading with bending and twisting moments is studied. The effects of straining nonlinearity, stiffness of longitudinal ribs, and shell thickness on the critical loads that induce shell buckling are analyzed.

Keywords: noncircular cylindrical composite shells, discrete reinforcement, nonlinear deformation, stability, finite element method.

UDC: 629.7.023:539.3

Received: 10.01.2017
Revised: 04.04.2017

DOI: 10.15372/PMTF20180119

 English version: Journal of Applied Mechanics and Technical Physics, 2018, 59:2, 352–358

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