Snap-through Buckling of Shallow Spherical Shells under Ring Loads

IF 0.8 4区工程技术 Q4 ENGINEERING, CIVIL

Teknik Dergi Pub Date : 2021-03-01 DOI:10.18400/tekderg.565095

E. Karataş, R. F. Yükseler

引用次数: 0

Abstract

Snap-through buckling behaviour of rigid vinly polyethlene shallow spherical shells, undergoing large displacements, subjected to static ring loads is investigated by using finite differences and Newton-Raphson Method. The load-deflection diagrams corresponding to various values of thickness, depth and ring diameter of the shell with simply supported and clamped edges are drawn and compared. The accuracy of the used algorithm and the prepared computer program are tested by comparing some of the numerical results obtained in this study with those obtained by an experimental study, available in the relevant literature. Further steps on the concerning subject are achieved.

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环形载荷作用下扁球壳的弹穿屈曲

采用有限差分法和Newton-Raphson方法研究了刚性聚乙烯扁球壳在静环载荷作用下承受大位移时的弹穿屈曲行为。绘制并比较了具有简支和夹持边缘的壳体的不同厚度、深度和环直径值对应的载荷-挠度图。通过将本研究中获得的一些数值结果与相关文献中的实验研究获得的结果进行比较，测试了所用算法和准备的计算机程序的准确性。已就有关主题采取进一步步骤。

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

Teknik Dergi 工程技术-工程：土木

自引率

30.80%

发文量

审稿时长

>12 weeks

期刊介绍： The scope of Teknik Dergi is naturally confined with the subjects falling in the area of civil engineering. However, the area of civil engineering has recently been significantly enlarged, even the definition of civil engineering has somewhat changed. Half a century ago, engineering was simply defined as “the art of using and converting the natural resources for the benefit of the mankind”. Today, the same objective is expected to be realised (i) by complying with the desire and expectations of the people concerned and (ii) without wasting the resources and within the sustainability principles. This change has required an interaction between engineering and social and administrative sciences. Some subjects at the borderline between civil engineering and social and administrative sciences have consequently been included in the area of civil engineering. Teknik Dergi defines its scope in line with this understanding. However, it requires the papers falling in the borderline to have a significant component of civil engineering.