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

dc.contributor		en-US
dc.creator	Hector, Ruiz
dc.creator	Naoki, Osawa
dc.creator	Hidekazu, Murakawa
dc.creator	Hidekazu, Murakawa
dc.creator	Sherif, Rashed
dc.creator	Hector, Ruiz
dc.creator	Naoki, Osawa
dc.creator	Hidekazu, Murakawa
dc.creator	Hidekazu, Murakawa
dc.creator	Sherif, Rashed
dc.date	2018-02-11
dc.date.accessioned	2018-02-23T17:16:19Z
dc.date.available	2018-02-23T17:16:19Z
dc.identifier	https://knepublishing.com/index.php/KnE-Engineering/article/view/1438
dc.identifier	10.18502/keg.v3i1.1438
dc.identifier.uri	http://ridda2.utp.ac.pa/handle/123456789/4274
dc.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	en-US
dc.format	application/msword
dc.format	application/pdf
dc.format	application/xml
dc.language	eng
dc.publisher	KnE Publishing	en-US
dc.relation	https://knepublishing.com/index.php/KnE-Engineering/article/view/1438/3248
dc.relation	https://knepublishing.com/index.php/KnE-Engineering/article/view/1438/3479
dc.relation	https://knepublishing.com/index.php/KnE-Engineering/article/view/1438/3480
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	https://creativecommons.org/licenses/by/4.0/
dc.source	2518-6841
dc.source	KnE Engineering; 6th Engineering, Science and Technology Conference - Panama 2017 (ESTEC 2017); 332-343	en-US
dc.title	Development of a Practical Straightening Simulation for Welded Structures Using Inherent Strain Method	en-US
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion

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6th Engineering, Science and Technology Conference (ESTEC 2017) organized by the Universidad Tecnologica de Panama (UTP)

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