{"title":"An efficient method for the finite element analysis of shell structures by placing feature-fitted local shell meshes in a global shell mesh","authors":"Thuan Ho-Nguyen-Tan , Hyun-Gyu Kim","doi":"10.1016/j.finel.2023.104101","DOIUrl":null,"url":null,"abstract":"<div><p><span>This paper presents an efficient method for the finite element analysis<span><span> of shell structures using feature-fitted local shell </span>meshes<span> that are placed in a global shell mesh. Feature-fitted local shell meshes are independently constructed to accurately represent the geometric features of shell structures. Non-matching interfaces between global and local shell meshes are connected by interface shell elements with an arbitrary number of nodes on the element sides. Assumed covariant strains are used to alleviate the shear and membrane </span></span></span>locking phenomena in interface shell elements. Numerical results show that more accurate solutions near the geometric features of shell structures can be obtained from feature-fitted shell meshes compared to those from conventional shell meshes composed of mixed-typed shell elements.</p></div>","PeriodicalId":56133,"journal":{"name":"Finite Elements in Analysis and Design","volume":null,"pages":null},"PeriodicalIF":3.5000,"publicationDate":"2023-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Finite Elements in Analysis and Design","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0168874X23001944","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATHEMATICS, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
This paper presents an efficient method for the finite element analysis of shell structures using feature-fitted local shell meshes that are placed in a global shell mesh. Feature-fitted local shell meshes are independently constructed to accurately represent the geometric features of shell structures. Non-matching interfaces between global and local shell meshes are connected by interface shell elements with an arbitrary number of nodes on the element sides. Assumed covariant strains are used to alleviate the shear and membrane locking phenomena in interface shell elements. Numerical results show that more accurate solutions near the geometric features of shell structures can be obtained from feature-fitted shell meshes compared to those from conventional shell meshes composed of mixed-typed shell elements.
期刊介绍：
The aim of this journal is to provide ideas and information involving the use of the finite element method and its variants, both in scientific inquiry and in professional practice. The scope is intentionally broad, encompassing use of the finite element method in engineering as well as the pure and applied sciences. The emphasis of the journal will be the development and use of numerical procedures to solve practical problems, although contributions relating to the mathematical and theoretical foundations and computer implementation of numerical methods are likewise welcomed. Review articles presenting unbiased and comprehensive reviews of state-of-the-art topics will also be accommodated.
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