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Development of a Practical Straightening Simulation for Welded Structures Using Inherent Strain Method

Welding is the most widely used assembly method available to industries in the construction of metal structures, ships, and offshore platforms. However, this method always produces a certain amount of distortion that will not only degrade the performance but also increase the building cost of the st...

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Autores Principales: Hector, Ruiz, Naoki, Osawa, Hidekazu, Murakawa, Sherif, Rashed
Formato: Artículo
Idioma: Inglés
Publicado: KnE Publishing 2018
Acceso en línea: https://knepublishing.com/index.php/KnE-Engineering/article/view/1438
http://ridda2.utp.ac.pa/handle/123456789/4274
id RepoUTP4274
recordtype dspace
spelling RepoUTP42742021-07-06T16:47:35Z Development of a Practical Straightening Simulation for Welded Structures Using Inherent Strain Method Hector, Ruiz Naoki, Osawa Hidekazu, Murakawa Hidekazu, Murakawa Sherif, Rashed Hector, Ruiz Naoki, Osawa Hidekazu, Murakawa Hidekazu, Murakawa Sherif, Rashed Welding is the most widely used assembly method available to industries in the construction of metal structures, ships, and offshore platforms. However, this method always produces a certain amount of distortion that will not only degrade the performance but also increase the building cost of the structure, and it should be straightened. Murakawa [1] developed a thermal elastic plastic based and inherent strain based welding simulation FE code JWRIAN. Coarse shell FE models are usually used in the inherent strain based JWRIAN elastic analyses. This drastically reduces the manpower needed for modeling and computer resources needed for the calculation. However, it is not easy to perform straightening analysis using JWRIAN because gas heating’s inherent strain distributes over a range much smaller than element sizes of the shell model.RUIZ [2] modified JWRIAN’s code so that the inherent strain equivalent nodal forces along the heating line are calculated and applied in the elastic shell analysis. However, a discrepancy between 3-dimensional thermal-elastic-plastic analysis and elastic analysis was observed. This is mainly because of the nature of solid and shell elements. RUIZ [3] proposed a linearized inherent strain and applied it to both 3-d and 2d analysis, getting matching results between solid and shell element models. In this study, as a working example, a thin plate panel with an opening is considered utilizing the developed system at the same time a friendly user interface for staffs and workers on a production site is developed.  Keywords: Inherent strain, straightening, finite element method, Gauss-Legendre quadrature 2018-02-11 2018-02-23T17:16:19Z 2018-02-23T17:16:19Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://knepublishing.com/index.php/KnE-Engineering/article/view/1438 10.18502/keg.v3i1.1438 http://ridda2.utp.ac.pa/handle/123456789/4274 eng https://knepublishing.com/index.php/KnE-Engineering/article/view/1438/3248 https://knepublishing.com/index.php/KnE-Engineering/article/view/1438/3479 https://knepublishing.com/index.php/KnE-Engineering/article/view/1438/3480 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ application/msword application/pdf application/xml KnE Publishing 2518-6841 KnE Engineering; 6th Engineering, Science and Technology Conference - Panama 2017 (ESTEC 2017); 332-343
institution Universidad Tecnológica de Panamá
collection Repositorio UTP – Ridda2
language Inglés
description Welding is the most widely used assembly method available to industries in the construction of metal structures, ships, and offshore platforms. However, this method always produces a certain amount of distortion that will not only degrade the performance but also increase the building cost of the structure, and it should be straightened. Murakawa [1] developed a thermal elastic plastic based and inherent strain based welding simulation FE code JWRIAN. Coarse shell FE models are usually used in the inherent strain based JWRIAN elastic analyses. This drastically reduces the manpower needed for modeling and computer resources needed for the calculation. However, it is not easy to perform straightening analysis using JWRIAN because gas heating’s inherent strain distributes over a range much smaller than element sizes of the shell model.RUIZ [2] modified JWRIAN’s code so that the inherent strain equivalent nodal forces along the heating line are calculated and applied in the elastic shell analysis. However, a discrepancy between 3-dimensional thermal-elastic-plastic analysis and elastic analysis was observed. This is mainly because of the nature of solid and shell elements. RUIZ [3] proposed a linearized inherent strain and applied it to both 3-d and 2d analysis, getting matching results between solid and shell element models. In this study, as a working example, a thin plate panel with an opening is considered utilizing the developed system at the same time a friendly user interface for staffs and workers on a production site is developed.  Keywords: Inherent strain, straightening, finite element method, Gauss-Legendre quadrature
format Artículo
author Hector, Ruiz
Naoki, Osawa
Hidekazu, Murakawa
Hidekazu, Murakawa
Sherif, Rashed
Hector, Ruiz
Naoki, Osawa
Hidekazu, Murakawa
Hidekazu, Murakawa
Sherif, Rashed
spellingShingle Hector, Ruiz
Naoki, Osawa
Hidekazu, Murakawa
Hidekazu, Murakawa
Sherif, Rashed
Hector, Ruiz
Naoki, Osawa
Hidekazu, Murakawa
Hidekazu, Murakawa
Sherif, Rashed
Development of a Practical Straightening Simulation for Welded Structures Using Inherent Strain Method
author_sort Hector, Ruiz
title Development of a Practical Straightening Simulation for Welded Structures Using Inherent Strain Method
title_short Development of a Practical Straightening Simulation for Welded Structures Using Inherent Strain Method
title_full Development of a Practical Straightening Simulation for Welded Structures Using Inherent Strain Method
title_fullStr Development of a Practical Straightening Simulation for Welded Structures Using Inherent Strain Method
title_full_unstemmed Development of a Practical Straightening Simulation for Welded Structures Using Inherent Strain Method
title_sort development of a practical straightening simulation for welded structures using inherent strain method
publisher KnE Publishing
publishDate 2018
url https://knepublishing.com/index.php/KnE-Engineering/article/view/1438
http://ridda2.utp.ac.pa/handle/123456789/4274
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score 12.2319145

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