A Modification on Applied Element Method for Linear Analysis of Structures in the Range of Small and Large Deformations Based on Energy Concept

In this paper, the formulation of a modified applied element method for linear analysis of structures in the range of small and large deformations is expressed. To calculate deformations in the structure, the minimum total potential energy principle is used. This method estimates the linear behavior...

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Main Authors: Mohamadreza Shokri, Hamidreza Tavakoli, Ali Rahmani
Format: Article
Language:English
Published: University of Tehran Press 2020-06-01
Series:Civil Engineering Infrastructures Journal
Subjects:
Online Access:https://ceij.ut.ac.ir/article_76793_9bca2905364c85fe6ef69340dc639644.pdf
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author Mohamadreza Shokri
Hamidreza Tavakoli
Ali Rahmani
author_facet Mohamadreza Shokri
Hamidreza Tavakoli
Ali Rahmani
author_sort Mohamadreza Shokri
collection DOAJ
description In this paper, the formulation of a modified applied element method for linear analysis of structures in the range of small and large deformations is expressed. To calculate deformations in the structure, the minimum total potential energy principle is used. This method estimates the linear behavior of the structure in the range of small and large deformations, with a very good accuracy and low analytical time. The results show that analysis of a console beam by proposed method, even with minimum numbers of elements, in range of small deformations, has a computation error of less than 2%. Meanwhile, solving the same problem by Applied Element Method (AEM), has more than 31% error. Also, the buckling and post-buckling behavior of the structure, within the range of large deformations, is well-suited. So, with minimum number of elements, and very high accuracy, the buckling behavior of the fixed-base column was simulated. Also, the computational time of the proposed method is less than 40 percent of the computational time in the application of the applied elements method with 10 series of connection springs.
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spelling doaj.art-88745253f20c47c1a47f3deae18d16d42022-12-22T03:30:53ZengUniversity of Tehran PressCivil Engineering Infrastructures Journal2322-20932423-66912020-06-01531536910.22059/ceij.2020.269910.152976793A Modification on Applied Element Method for Linear Analysis of Structures in the Range of Small and Large Deformations Based on Energy ConceptMohamadreza Shokri0Hamidreza Tavakoli1Ali Rahmani2Babol Noshirvani University of TechnologyBabol Noshirvani University of TechnologyBabol Noshirvani University of TechnologyIn this paper, the formulation of a modified applied element method for linear analysis of structures in the range of small and large deformations is expressed. To calculate deformations in the structure, the minimum total potential energy principle is used. This method estimates the linear behavior of the structure in the range of small and large deformations, with a very good accuracy and low analytical time. The results show that analysis of a console beam by proposed method, even with minimum numbers of elements, in range of small deformations, has a computation error of less than 2%. Meanwhile, solving the same problem by Applied Element Method (AEM), has more than 31% error. Also, the buckling and post-buckling behavior of the structure, within the range of large deformations, is well-suited. So, with minimum number of elements, and very high accuracy, the buckling behavior of the fixed-base column was simulated. Also, the computational time of the proposed method is less than 40 percent of the computational time in the application of the applied elements method with 10 series of connection springs.https://ceij.ut.ac.ir/article_76793_9bca2905364c85fe6ef69340dc639644.pdfapplied element methodlinear analysisminimum total potential energy principlesmall and large deformations
spellingShingle Mohamadreza Shokri
Hamidreza Tavakoli
Ali Rahmani
A Modification on Applied Element Method for Linear Analysis of Structures in the Range of Small and Large Deformations Based on Energy Concept
Civil Engineering Infrastructures Journal
applied element method
linear analysis
minimum total potential energy principle
small and large deformations
title A Modification on Applied Element Method for Linear Analysis of Structures in the Range of Small and Large Deformations Based on Energy Concept
title_full A Modification on Applied Element Method for Linear Analysis of Structures in the Range of Small and Large Deformations Based on Energy Concept
title_fullStr A Modification on Applied Element Method for Linear Analysis of Structures in the Range of Small and Large Deformations Based on Energy Concept
title_full_unstemmed A Modification on Applied Element Method for Linear Analysis of Structures in the Range of Small and Large Deformations Based on Energy Concept
title_short A Modification on Applied Element Method for Linear Analysis of Structures in the Range of Small and Large Deformations Based on Energy Concept
title_sort modification on applied element method for linear analysis of structures in the range of small and large deformations based on energy concept
topic applied element method
linear analysis
minimum total potential energy principle
small and large deformations
url https://ceij.ut.ac.ir/article_76793_9bca2905364c85fe6ef69340dc639644.pdf
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