Nonlinear deformation and stability of discretely reinforced elliptical cylindrical shells under transverse bending and internal pressure

被引：0

作者：

Zheleznov L.P. ^{[1
]}

Kabanov V.V. ^{[1
]}

Boiko D.V. ^{[1
]}

机构：

[1] Siberian Scientific Research Institute of Aviation (SibNIA), ul. Polzunova 21, Novosibirsk

来源：

Russian Aeronautics | 2014年 / 57卷 / 02期

关键词：

discrete reinforcement; finite element method; noncircular cylindrical shell; nonlinear deformation; nonuniform stress strain state; stability;

D O I：

10.3103/S1068799814020020

中图分类号：

学科分类号：

摘要：

A finite element formulation of solving the stability problems for the discretely reinforced noncircular cylindrical shells is presented taking into account that their subcritical stress strain state is instantaneous and nonlinear. The author-developed finite elements for a natural-curved shell and the beam elements of reinforcements are used. A numerical algorithm to study the nonlinear deformation and stability of shells was developed. The stability of a stringer-stiffened cylindrical shell with an elliptical cross-sectional contour under transverse bending and internal pressure is examined. We also investigate the effect of internal pressure, ellipticity and nonlinearity of deformation, as well as of reinforcement discreteness and heterogeneity. © 2014 Allerton Press, Inc.

引用

页码：118 / 126

页数：8

共 7 条

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