Effect of friction on the buckling behavior of shallow spherical shells contacting with rigid walls

IF 1.2 Q3 ENGINEERING, MECHANICAL

Archive of Mechanical Engineering Pub Date : 2024-01-15 DOI:10.24425/ame.2024.149187

X. Nguyen, Yoshio Arai, W. Araki

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引用次数: 1

Abstract

This paper investigates the effect of friction on the buckling behavior of a thin, shallow, elastic spherical shell under uniform external pressure based on an axisymmetric model of the finite element method. The study examines a combination of different geometric parameters with three different types of boundary conditions: clamped, hinged, and frictional ends with a wide range of friction coefficients. Friction has a significant influence on the buckling response of the spherical shell for all geometric parameters. In general, the critical pressure decreases as the friction coefficient or geometric parameter decreases. The buckling behavior of the frictional end with small friction coefficients presents an obvious difference compared to the results of high coefficients. For certain geometric parameters, the buckling mode of the spherical shell is transited because of changing the friction coefficient. A buckling map that describes the dependence of critical pressure on both friction coefficient and geometric parameter combined with buckling mode is generated. This map can be applied to the design of the spherical shell against buckling.

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摩擦对与刚性壁接触的浅球壳屈曲行为的影响

本文基于有限元法的轴对称模型，研究了摩擦对均匀外压下薄而浅的弹性球壳屈曲行为的影响。研究考察了不同几何参数与三种不同类型边界条件的组合：夹紧端、铰链端和摩擦系数范围较大的摩擦端。在所有几何参数下，摩擦对球形壳体的屈曲响应都有显著影响。一般来说，临界压力随着摩擦系数或几何参数的减小而减小。与摩擦系数大的结果相比，摩擦系数小的摩擦端屈曲行为有明显差异。对于某些几何参数，球壳的屈曲模式会因为摩擦系数的改变而发生转变。我们生成了一张屈曲图，描述了临界压力与摩擦系数和几何参数的关系，并结合了屈曲模式。该图可用于球壳的抗屈曲设计。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Archive of Mechanical Engineering ENGINEERING, MECHANICAL-

CiteScore

1.70

自引率

14.30%

发文量

审稿时长

15 weeks

期刊介绍： Archive of Mechanical Engineering is an international journal publishing works of wide significance, originality and relevance in most branches of mechanical engineering. The journal is peer-reviewed and is published both in electronic and printed form. Archive of Mechanical Engineering publishes original papers which have not been previously published in other journal, and are not being prepared for publication elsewhere. The publisher will not be held legally responsible should there be any claims for compensation. The journal accepts papers in English.