THE EFFECT OF NONLINEAR CURVATURE STRAINS ON THE BUCKLING OF LAMINATED PLATES AND SHELLS

被引：7

作者：

DENNIS, ST ^{[1
]}

PALAZOTTO, AN ^{[1
]}

机构：

[1] USAF,INST TECHNOL,DEPT AERONAUT & ASTRONAUT,WRIGHT PATTERSON AFB,OH 45433

来源：

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING | 1993年 / 36卷 / 04期

关键词：

D O I：

10.1002/nme.1620360404

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A versatile geometrically non-linear curved shell finite element formulation includes exact Green's strain displacement for the inplane strains and linear strain displacement for the transverse shear strains. Additional coupling results for membrane-bending and membrane-transverse shear due to non-linear curvature strain-displacement relations. Additional non-linear terms that are a function of the shell's radius of curvature are also present. The approach is applied to the bifurcation buckling of axially compressed flat plates and transversely pressure-loaded cylindrical shell panels. The method gives a more flexible result for the plates compared to von Karman non-linearity. Additionally, larger buckling pressures are found for shell panels. The effects of transverse shear flexibility are evident.

引用

页码：595 / 609

页数：15

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