球壳的环向剪切屈曲

张音翼

球壳的环向剪切屈曲

张音翼

南昌大学工程力学研究所, 南昌 330029

详细信息

作者简介:
张音翼(1944~ ),男,教授,硕士.

中图分类号: TB124
计量
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- 被引次数: 0
出版历程
- 收稿日期: 1997-11-17
- 修回日期: 1998-09-22
- 刊出日期: 1999-04-15

Torsional Buckling of Spherical Shells Under Circumferential Shear Loads

Zhang Yinyi

Institute of Engineering Mechanics, Nanchang University, Nanchang 330029, P R China

摘要

摘要: 通过球壳微元初始屈曲的微分几何分析,推导出一组新的精确的屈曲分支方程,并且应用Galerkin变分法研究铰支球壳承受环向剪切力时的整体稳定性,构造了接近分支点变形状态的屈曲模式,首次求得了从扁球壳到半球壳大范围内的扭转屈曲临界特征值,临界荷载强度和临界应力.
- 球壳 /
- 屈曲分支方程 /
- 环向剪切力 /
- 特征值 /
- 屈曲临界值
Abstract: By the aid of differential geometry analysis on the initial buckling of shell element,a set of new and exact buckling bifurcation equations of the spherical shells is derived.Making use of Galerkin variational method,the general stability of the hinged spherical shells with the circumferential shear loads is studied.Constructing the buckling mode close to the bifurcation point deformations,the critical eigenvalues,critical load intensities and critical stresses of torsional buckling ranging from the shallow shells to the hemispherical shell are obtained for the first time.
- spherical shell /
- buckling bifurcation equation /
- circumferential shear load /
- eigenvalue /
- buckling critical value

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参考文献(15)

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