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Simulation of multipass welding of a thick plate
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mechanics of Solid Materials.ORCID iD: 0000-0002-2544-9168
Luleå tekniska universitet.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.ORCID iD: 0000-0001-5493-6873
1999 (English)In: International Journal for Numerical Methods in Engineering, ISSN 0029-5981, E-ISSN 1097-0207, Vol. 44, no 9, p. 1301-1316Article in journal (Refereed) Published
Abstract [en]

Multipass butt welding of a very thick steel plate has been performed. Transient temperatures and residual stresses have been measured. The agreement between calculations and experiments is good. Two different approaches, quiet and inactive elements, for modelling multipass welding are compared. The first approach is straightforward to apply in most finite element codes. The inactive element method requires a code that can regenerate the finite element model automatically or otherwise very tedious manual work is necessary as the elements are added to the model when welds are laid. It is shown that both techniques give the same results but the computational effort is reduced by using inactive elements. It also circumvents the problem in the quiet element approach of choosing properties of elements in the model that represent the case when welds are not laid.

Place, publisher, year, edition, pages
1999. Vol. 44, no 9, p. 1301-1316
National Category
Other Materials Engineering Other Mechanical Engineering
Research subject
Material Mechanics; Computer Aided Design
Identifiers
URN: urn:nbn:se:ltu:diva-3255Local ID: 10fc6790-6f77-11db-962b-000ea68e967bOAI: oai:DiVA.org:ltu-3255DiVA, id: diva2:976111
Note
Godkänd; 1999; 20060924 (cira)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-05-09Bibliographically approved

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Lindgren, Lars-ErikNäsström, Mats

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