The inter-element coupling effect of triangular flat shells. Issue 7 (5th October 2015)

• Record Type: Journal Article
• Authors: Zhang, Shi; Zhang, Yun; Huang, Zhigao; Zhou, Huamin; Li, Jianhui
• Is Part Of: Engineering computations. Volume 32:Issue 7(2015)
• Page Start: 1959
• Page End: 1980
• Publication Date: 2015-10-05
• Subjects: Computer-aided engineering -- Periodicals; Computer graphics -- Periodicals; 620.00285
• DOI: 10.1108/EC-11-2014-0230
• Languages: English
• ISSNs: 0264-4401

Abstract

<abstract> <title> <x content-type="archive" xml:space="preserve">Abstract</x> </title> <sec> <title content-type="abstract-heading">Purpose</title> <p> – The purpose of this paper is to study the inter-element coupling effect of membrane and plate components between two adjacent shells occurring on the common boundary. </p> </sec> <sec> <title content-type="abstract-heading">Design/methodology/approach</title> <p> – In this paper, three triangular flat shells developed by combining an excellent membrane element (OPT) with three outstanding plate bending elements (DKT, RDKTM and DST-BK), respectively, are used to study this phenomenon. Benchmark tests are implemented to evaluate the performance of three selected plate elements and the formulated flat shells. </p> </sec> <sec> <title content-type="abstract-heading">Findings</title> <p> – The inter-element coupling effect of membrane and plate components belonging, respectively, to two adjacent shells deteriorate the performance of shells. Therefore, a shell's performance cannot be guaranteed certainly by the superimposed membrane and plate behaviors. </p> </sec> <sec> <title content-type="abstract-heading">Practical implications</title> <p> – The "order matching" criterion is proposed to explain this phenomenon and it is concluded that the flat shell that follows this criterion explicitly may alleviate or even overcome the inter-element coupling effect. </p> </sec> <sec> <title content-type="abstract-heading">Originality/value</title> <p> – Previous studies mainly focus on formulation of high-performance membrane and plate elements. However, the inter-element coupling effect of membrane and plate components between two adjacent shells occurring on the common boundary, has attracted less attention. Thorough benchmark tests for three flat shells are implemented to investigate the phenomenon. The results shows that the inter-element coupling effect deteriorates the performance of shells. And the "order matching" criterion is proposed to explain this phenomenon and it is concluded that the flat shell that follows this criterion explicitly may alleviate or even overcome the inter-element coupling effect.</p> </sec> </abstract>